Medical Sciences
Final Test Solutions
Course Introduction
Medical Sciences is an interdisciplinary field that explores the biological foundations of health and disease in humans. The course covers core topics such as anatomy, physiology, biochemistry, microbiology, pharmacology, and pathology, providing students with a comprehensive understanding of how the human body functions at molecular, cellular, and systemic levels. Emphasizing both theoretical knowledge and practical laboratory skills, the course prepares students for further studies in medicine, biomedical research, and allied health professions, while fostering critical thinking and analytical abilities relevant to the evolving landscape of healthcare and medical innovation.
Recommended Textbook
Histology and Cell Biology An Introduction to Pathology 3rd Edition by Abraham L Kierszenbaum
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23 Chapters
246 Verified Questions
246 Flashcards
Source URL: https://quizplus.com/study-set/1202 Page 2
Chapter 1: Epithelium
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18 Verified Questions
18 Flashcards
Source URL: https://quizplus.com/quiz/23777
Sample Questions
Q1) The surface of the ovaries contains which type of epithelium
A) Pseudostratified columnar
B) Simple columnar
C) Simple cuboidal
D) Simple squamous
E) Stratified squamous
Answer: C
Q2) Identify the INCORRECT statement
A) Basal lamina can be divided into the lamina densa and lamina lucida
B) Desmosomes are an effective barrier to the diffusion of substances across an epithelium.
C) In pseudostratified epithelia all epithelial cells contact the basement membrane.
D) The basal lamina can act as a selective filter between the epithelium and the connective tissue.
E) Tight junctions between epithelial cells are an effective barrier to the diffusion of substances across an epithelium.
Answer: B
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Chapter 2: Epithelial Glands
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6 Verified Questions
6 Flashcards
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Sample Questions
Q1) Which phrase does NOT describe one of the functions of proteins of the plasma membrane?
A) Acting as a receptor for substances external to the cell
B) Binding to a substance to carry it through the membrane
C) Forming a channel through the membrane
D) Increasing the rate of a chemical reaction
E) Initiating the replication of the genetic material
Answer: E
Q2) Which organelle is responsible for degrading proteins?
A) Golgi apparatus
B) Lysosome
C) Mitochondrion
D) Rough endoplasmic reticulum
E) Smooth endoplasmic reticulum
Answer: B
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4
Chapter 3: Cell Signaling
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6 Verified Questions
6 Flashcards
Source URL: https://quizplus.com/quiz/23779
Sample Questions
Q1) A secreted chemical messenger meant to act on an adjacent cell is called a(n)
A) Autocrine
B) Hormone
C) Neurohormone
D) Neurotransmitter
E) Paracrine
Answer: E
Q2) Which of the following is most likely to initiate apoptosis?
A) Apaf-1
B) Bcl-2
C) Caspase 3
D) Caspase 9
E) DNA protein kinase
Answer: D
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Page 5
Chapter 4: Connective Tissue
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23 Verified Questions
23 Flashcards
Source URL: https://quizplus.com/quiz/23780
Sample Questions
Q1) Both mature bone cells and mature cartilage cells are found in chambers called
A) Isogenous groups
B) Lacunae
C) Lamellae
D) Territorial matrices
E) Volkmann's canals
Q2) Which of the following is NOT true regarding the osteon in compact bone?
A) It is composed of concentric lamellae of mineralized material
B) Osteocytes are interconnected by radial canaliculi
C) The central component is the haversian canal that contains blood vessels and nerves
D) The primary cell type within the mineralized bone of the osteon is the osteoclast
E) Volkmann's canals run perpendicular to the diaphysis of the bone
Q3) Osteoporosis can occur when _____ activity exceeds _____ activity.
A) Osteoblast osteoclast
B) Osteoclast osteoblast
C) Osteoclast osteocyte
D) Osteocyte osteoblast
E) Osteocyte osteoclast
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Chapter 5: Osteogenesis
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/23781
Sample Questions
Q1) The hormone calcitonin functions to
A) Decrease the rate of calcium absorption
B) Decrease the rate of calcium excretion
C) Increase the level of calcium ion in the blood
D) Stimulate both osteoblast and osteoclast activity
E) Stimulate osteoclast activity
Q2) Which of the following is true of intramembranous, rather than endochondral, ossification?
A) A hyaline cartilage model is used
B) Long bones are formed
C) Mesenchymal cells differentiate into osteoblasts within connective tissue
D) Periosteal buds invade the lacunae left behind by dead chondrocytes
E) Secondary ossification centers form in the epiphyses
Q3) Each of the following statements about epiphyseal plates is correct EXCEPT
A) Appositional growth occurs on the epiphyseal side
B) Bone replaces cartilage on the diaphyseal side
C) Mitotically active chondrocytes are distributed throughout the zone of reserve cartilage
D) Epiphyseal plates are required for lengthening of long bones
E) Epiphyseal plates contain a portion of healthy hyaline cartilage
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Chapter 6: Blood and Hematopoiesis
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14 Verified Questions
14 Flashcards
Source URL: https://quizplus.com/quiz/23782
Sample Questions
Q1) One major protein of plasma that is involved in blood clotting is
A) Albumin
B) Fibrinogen
C) Globulin
D) Immunoglobulin
E) Spectrin
Q2) Which cell type synthesizes and releases antibodies?
A) Basophil
B) B-lymphocyte
C) Eosinophil
D) Monocyte
E) T-lymphocyte
Q3) The majority of the formed elements of blood are
A) Eosinophils
B) Erythrocytes
C) Lymphocytes
D) Monocytes
E) Thrombocytes
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8
Chapter 7: Muscle Tissue
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) The structure that serves as an attachment for thin filaments and demarcates the boundary between sarcomeres in skeletal muscle is the
A) A band
B) H zone
C) I band
D) M line
E) Z line
Q2) When comparing skeletal, cardiac, and smooth muscle structure
A) Cardiac muscle contains triads while skeletal muscle contains diads
B) Sarcomere structure in smooth muscle and cardiac muscle are the same
C) Skeletal muscle thin filaments have actin, troponin, and tropomyosin; smooth muscle lacks troponin
D) Skeletal muscles consume more energy than cardiac muscle as a result of the abundance of mitochondria
E) T-tubule diameter in smooth muscle is smaller than in cardiac muscle
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9
Chapter 8: Nervous Tissue
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9 Verified Questions
9 Flashcards
Source URL: https://quizplus.com/quiz/23784
Sample Questions
Q1) Interneurons are found
A) Only in the brain
B) Only in the central nervous system
C) Only in the peripheral nervous system
D) Only in the spinal cord
E) Throughout the nervous system
Q2) Which of the following neuroglial cells is phagocytic?
A) Astrocytes
B) Ependymal cells
C) Oligodendrocytes
D) Microglial cells
E) Satellite cells
Q3) Neurotransmitters synthesized in the soma of a neuron reach the synaptic cleft via
A) Action potentials
B) Anterograde axonal transport
C) Graded potentials
D) Retrograde axonal transport
E) Synaptic activity
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10
Chapter 9: Sensory Organs: Vision and Hearing
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/23785
Sample Questions
Q1) Which of the following components prevents the aqueous humor from infiltrating the cornea?
A) Bowman's layer
B) Corneal endothelium
C) Corneal epithelium
D) Descemet's membrane
E) Stroma
Q2) As the distance between the eye and the object on which it is focusing decreases to less than approximately 20 feet, the _____ contracts, resulting in a more rounded and convex lens
A) Ciliary muscle
B) Iris
C) Optic disc
D) Suspensory ligament
E) Zonula fibers
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11
Chapter 10: Immune-Lymphatic System
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8 Verified Questions
8 Flashcards
Source URL: https://quizplus.com/quiz/23786
Sample Questions
Q1) Activated B cells proliferate in the _____ of a lymph node.
A) Capsule
B) Germinal center
C) Mantle zone
D) Subcapsular sinus
E) Trabeculae
Q2) The humoral immune response is carried out by
A) B lymphocytes
B) Erythrocytes
C) Neutrophils
D) T lymphocytes
E) Thrombocytes
Q3) The major histocompatibility complex
A) Activates B cells to produce specific antibodies
B) Differentiates into cytotoxic T cells upon re-exposure to a known pathogen
C) Helps T cells recognize antigens as nonself
D) Recognizes and kills viral cells by secreting perforin
E) Secretes interferon on contact with a virus
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12
Chapter 11: Integumentary System
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11 Verified Questions
11 Flashcards
Source URL: https://quizplus.com/quiz/23787
Sample Questions
Q1) Nail production occurs at the nail _____.
A) Bed
B) Body
C) Eponychium
D) Hyponychium
E) Matrix
Q2) Which of the following is NOT true of the stratum spinosum?
A) It contains immunity-conferring cells called Langerhans cells
B) It is also called the "spiny" layer
C) It is comprised mostly of keratinocytes
D) It is superficial to the stratum granulosum and the stratum germinativum
E) Keratins 5 and 14 are replaced by keratins 1 and 10 following basal keratinocyte migration
Q3) These merocrine simple coiled tubular glands are found all over the body
A) Apocrine sweat glands
B) Ceruminous glands
C) Eccrine sweat glands
D) Sebaceous follicles
E) Sebaceous glands
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Page 13
Chapter 12: Cardiovascular System
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12 Verified Questions
12 Flashcards
Source URL: https://quizplus.com/quiz/23788
Sample Questions
Q1) Moving from the lumen to the external surface of a typical vessel, the layers are
A) Basal lamina endothelium subendothelium internal elastic lamina smooth muscle connective tissue external elastic lamina
B) Endothelium basal lamina subendothelium internal elastic lamina smooth muscle external elastic lamina connective tissue
C) Endothelium subendothelium basal lamina internal elastic lamina smooth muscle connective tissue external elastic lamina
D) Endothelium subendothelium basal lamina smooth muscle internal elastic lamina external elastic lamina connective tissue
E) Internal elastic lamina endothelium basal lamina subendothelium smooth muscle connective tissue external elastic lamina
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14
Chapter 13: Respiratory System
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11 Verified Questions
11 Flashcards
Source URL: https://quizplus.com/quiz/23789
Sample Questions
Q1) Inspired air moves from the _____ directly into the alveolar ducts.
A) Alveolar sacs
B) Alveoli
C) Respiratory bronchioles
D) Terminal bronchioles
E) Tertiary bronchi
Q2) Which of the following statements about the larynx is not true?
A) It is lined with respiratory epithelium
B) The false vocal folds contain the space of Reinke
C) The subglottis is inferior to the anterior and posterior commissures
D) The true vocal folds are found in the glottis
E) Vocal cords are abducted during inspiration
Q3) Among other cells, goblet cells and cells of Kulchitsky are located in which structure?
A) Alveoli
B) Bronchioles
C) Larynx
D) Nasopharynx
E) Trachea
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15
Chapter 14: Urinary System
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14 Verified Questions
14 Flashcards
Source URL: https://quizplus.com/quiz/23790
Sample Questions
Q1) Which of the following statements about the juxtaglomerular apparatus is incorrect?
A) Afferent arteriole cells are modified to become macula densa cells
B) Cells of the macula densa are taller and narrower than normal
C) The juxtaglomular apparatus helps regulate blood pressure
D) The juxtaglomular apparatus is partly composed of modified cells from the distal thick segment
E) Juxtaglomerular cells are modified smooth muscle cells
Q2) Each renal corpuscle receives blood directly from which of the following vessels?
A) Afferent arteriole
B) Arcuate artery
C) Efferent arteriole
D) Interlobar artery
E) Interlobular artery
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16
Chapter 15: Upper Digestive Segment
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15 Verified Questions
15 Flashcards
Source URL: https://quizplus.com/quiz/23791
Sample Questions
Q1) Which of the following is true of the fungiform lingual papillae?
A) There are 8 to12 of them along the sulcus terminalis
B) They are single, evenly spaced, and are located on the tongue's margin
C) They are the largest lingual papillae and contain the most taste buds
D) They are the smallest and most numerous papillae and give the tongue its characteristic rough appearance
E) They help to clean oral surfaces as well as manipulate and process food
Q2) Which of the following gastric specializations allow for distention of the stomach?
A) Gastric areas
B) Gastric pits
C) Plicae circularis
D) Rugae
E) Villi
Q3) What do the surface mucous cells of the stomach do?
A) They are regenerative
B) They help reabsorb vitamin B12
C) They secrete a substance that protects the stomach lining from acid
D) They secrete hydrochloric acid
E) They secrete into the base of the gastric pit
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Page 17
Chapter 16: Lower Digestive Segment
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) Which of the following are not mucosal specializations of the small intestine?
A) Peyer's patches
B) Villi
C) Plicae circulares
D) Microvilli
E) Rugae
Q2) Where are electrolytes actively absorbed, and where is water passively absorbed?
A) Duodenum
B) Ileum
C) Jejunum
D) Large intestine
E) Stomach
Q3) Which of the following is not true of the crypts of Lieberkühn?
A) Their bases may contain Paneth cells
B) They are found between the intestinal villi
C) They are intestinal glands
D) They are simple tubular glands
E) They are unique to the small intestine
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18
Chapter 17: Digestive Glands
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13 Verified Questions
13 Flashcards
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Sample Questions
Q1) Portal triads of the liver
A) Are found at the corners of the classic lobules
B) Drain bile from the lobules
C) Drain deoxygenated blood from the liver parenchyma
D) Supply deoxygenated blood from the hepatic portal system
E) Supply oxygenated blood to the parenchyma of the liver
Q2) Which of the following is not true of salivary gland intralobular duct distribution?
A) Both intercalated and striated ducts are rare in submandibular glands
B) Mucous glands have only occasional intercalated ducts
C) Parotid glands have more striated ducts than submandibular glands
D) Striated ducts are abundant in mucous glands
E) Sublingual glands lack both striated and intercalated ducts
Q3) Portal triads are made up of vessels carrying all of the following EXCEPT
A) Bile away from the liver cells
B) Deoxygenated blood away from the liver cells
C) Deoxygenated blood to the liver cells
D) Nutrient-rich blood to the liver cells
E) Oxygenated blood to the liver cells
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19
Chapter 18: Neuroendocrine System
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7 Verified Questions
7 Flashcards
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Sample Questions
Q1) The hormone that stimulates insulin-like growth factor-1 production in the hepatocytes is secreted by
A) Acidophils
B) Basophils
C) Chromophobe cells
D) Herring bodies
E) Pituicytes
Q2) The anterior pituitary
A) Has a blood-brain barrier generated by pituicytes
B) Is composed of basophils, acidophils, and chromophobe cells
C) Is made up of the pars nervosa and the infundibulum
D) Receives blood from the inferior hypophyseal artery
E) Secretes hormones when directed to do so by a nervous signal from the hypothalamus
Q3) Melatonin
A) Is secreted by the neurohypophysis
B) Is secreted immediately following synthesis by acidophils
C) Is transported along pinealocyte axons
D) Production is stimulated by sunlight
E) Stimulates growth hormone secretion
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Chapter 19: Endocrine System
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) Adequate iodide levels are required for the synthesis of
A) Aldosterone
B) Cortisol
C) Thyroid-stimulating hormone
D) Thyrotropin-releasing hormone
E) Thyroxine
Q2) What happens immediately after insulin binds to the -subunit of the insulin receptor?
A) It activates the adjacent tyrosine kinase ( -subunit)
B) It increases glucose uptake by the cell
C) It stimulates glucagon secretion by the cells
D) It stimulates the synthesis of GLUT-4 (glucose transporter-4)
E) It transports the GLUT-4 protein to the cell membrane
Q3) Which of the following hormones is most likely to bind to a receptor inside the cell as opposed to a membrane receptor?
A) Aldosterone
B) Epinephrine
C) Melatonin
D) Parathyroid hormone
E) Vasopressin
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Chapter 20: Spermatogenesis
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8 Verified Questions
8 Flashcards
Source URL: https://quizplus.com/quiz/23796
Sample Questions
Q1) Which of the following are diploid structures?
A) Primary spermatocytes
B) Secondary spermatocytes
C) Sperm
D) Spermatids
E) Spermatozoa
Q2) Diploid spermatogenic cells in direct contact with the basal lamina are
A) Sertoli cells
B) Spermatocytes
C) Spermatogenic cells
D) Spermatogonia
E) Spermatozoa
Q3) Meiosis II occurs in the
A) Primary spermatocyte
B) Secondary spermatocyte
C) Spermatid
D) Spermatogonia
E) Spermatozoa
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22
Chapter 21: Sperm Transport and Maturation
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6 Verified Questions
6 Flashcards
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Sample Questions
Q1) Which duct has a characteristic wavy lumen as a result of different epithelial cell heights?
A) Ductuli efferentes
B) Ductus epididymidis
C) Rete testis
D) Seminiferous tubules
E) Tubuli recti
Q2) Which of the following structures secretes the largest component of seminal fluid?
A) Bulbourethral gland
B) Ductuli efferentes
C) Ductus epididymidis
D) Prostate gland
E) Seminal vesicle
Q3) Sperm move from the tubuli recti into the
A) Ductuli efferentes
B) Epididymidis
C) Rete testis
D) Seminiferous tubules
E) Vas deferens
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Page 23
Chapter 22: Follicle Development and the Menstrual Cycle
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10 Verified Questions
10 Flashcards
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Sample Questions
Q1) The thick fibromuscular layer of the uterus is the A) Cervix
B) Cortex
C) Endometrium
D) Myometrium
E) Tunica albuginea
Q2) The inner layer of the uterus is called the A) Cervix
B) Endometrium
C) Germinal epithelium
D) Mesovarium
E) Myometrium
Q3) Oocytes surrounded by granulosa cells are found in the A) Corona radiata
B) Corpus luteum
C) Cumulus oophorus
D) Theca folliculus
E) Zona pellucida
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Chapter 23: Fertilization, Placentation, and Lactation
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8 Verified Questions
8 Flashcards
Source URL: https://quizplus.com/quiz/23799
Sample Questions
Q1) Which part of the spermatozoa contains digestive enzymes that aid in fertilization?
A) Acrosome
B) Basal plate
C) End piece
D) Neck
E) Tail
Q2) What structure secretes estrogen and progesterone for approximately 3 months following fertilization?
A) Corpus albicans
B) Corpus luteum
C) Mature follicle
D) Placenta
E) Tunica albuginea
Q3) Where does fertilization usually occur?
A) Cervix
B) Ovary
C) Oviduct
D) Uterus
E) Vagina
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Page 25