100% APPROVED CORRECT ANSWERS
GRADED A+ FIRST CLASS PASS 2025
BIOS214 OLD EXAMS 4 QUESTIONS
2025
A
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BIOS214 OLD EXAMS 4 QUESTIONS WITH
100% APPROVED CORRECT ANSWERS
GRADED A+ FIRST CLASS PASS 2025
Which of the following vessels are in the interventricular sulcus?
a. The right and left semilunar arteries
b. The marginal artery and circumflex artery
c. The superior and inferior vena cava
d. The great and middle cardiac veins
e. The anterior and posterior interventricular arteries - correct answer d
Which of the following structures serves to store sperm?
a. Seminal vesicles
b. Spermatic cord
c. Seminiferous tubules
d. Prostate gland
e. Epididymis - correct answer e
Which of the following is a remnant of fetal circulation?
a. Foramen ovale
b. Ductus venosus
c. Aortic sac
d. Ductus arteriosus
e. Ligamentum venosum - correct answer e
The trigone is a triangular region of
a. The hilum
b. The prostatic urethra
c. The urinary bladder
d. The renal cortex
e. A renal pyramid - correct answer c
The constricted part of the uterus that protrudes into the vagina is called the
a. Body
b. Vestibule
c. Fundus
d. Internal os
e. Cervix - correct answer e
The coronary arteries arise from
a. The interventricular arteries
b. The myocardium
c. The coronary sulcus
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d. The venae cava
e. The proximal end of the aorta - correct answer e
Which glands open into the lower vagina and provide most of the lubrication for
intercourse?
a. Endometrial glands
b. Greater vestibular glands
c. Areolar glands
d. Prostate glands
e. Paraurethral glands - correct answer b
Which structure caps the head of a mature sperm and enables the sperm to penetrate an
egg?
a. Mitochondria
b. Flagellum
c. Acrosome
d. Nucleus
e. Axoneme - correct answer c
What structure reabsorbs the most glomerular filtrate?
a. Distal convoluted tubule
b. Proximal convoluted tubule
c. Nephron loop
d. Glomerulus
e. Collecting duct - correct answer b
Why do elderly men often have difficulty voiding urine?
a. Renal calculi
b. Weakened urethral sphincters
c. Prostatic hyperplasia
d. Prostate cancer
e. Reduction in number of functional nephrons - correct answer c
If we follow the ureter into the kidney, we find that the first structure to arise from it is
a. The renal pyramids
b. The major calices
c. The minor calices
d. The renal sinus
e. The renal pelvis - correct answer e
The role of the pampiniform plexus is to
a. Serve as a sensory receptor for the penis
b. Produce testosterone
c. Act as a countercurrent heat exchanger
d. Supply nutrition to the developing sperm
e. Convert spermatids to spermatozoa - correct answer c
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What is the pampiniform plexus?
a. A network of veins that helps cool the blood to the penis
b. A network of veins that helps cool the blood to the scrotum
c. A network of blood vessels that supplies the uterus
d. A network of blood vessels that supplies the ovaries
e. A network of blood vessels that facilitates maternal and fetal exchange - correct answer b
What structures pull on the chordae tendinae and hold them taut during ventricular
contraction?
a. Fibers in the bundle of His
b. Pectinate muscles
c. Papillary muscles
d. Trabeculae carnae
e. Coronary ropes - correct answer c
What hormone regulates water permeability in the collecting duct?
a. Antidiuretic hormone
b. Renin
c. Erythropoietin
d. Aldosterone
e. Atrial natriuretic peptide - correct answer a
What cells produce testosterone?
a. Sustentacular cells
b. Seminiferous cells
c. Interstitial cells
d. Spermatogonia
e. Cumulus cells - correct answer c
The first step leading to angiotensin 2 production is the secretion of ____ by the kidneys.
a. Renin
b. Angiotensin converting enzyme
c. Calcitriol
d. Angiotensin 1
e. Angiotensinogen - correct answer a
If the chordae tendinae of an animal's heart were cut, the most likely effect would be
a. Fibrillation
b. Myocardial infarction
c. Valvular prolapse
d. Valvular stenosis
e. Heart block - correct answer c
The hepatic portal vein receives blood from all of the following except
a. The superior mesenteric vein
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