$$Hct = \frac{V_{RBC}}{V_{total}} \times 100$$

Question 1

Which of the following best describes the main function of the epididymis in the male reproductive system?

Accepted Answer

Storage and maturation of sperm

Question 2

Which structure is responsible for producing the majority of the seminal fluid in males?

Accepted Answer

Seminal vesicles

Question 3

During the ovarian cycle, which phase is characterized by the release of an oocyte from the ovary?

Accepted Answer

Ovulation

Question 4

Which nerve is primarily responsible for controlling erection in males?

Accepted Answer

Pudendal nerve

Question 5

Which of the following correctly matches a heart valve with its location?

Accepted Answer

Tricuspid valve - between right atrium and right ventricle

Question 6

Which layer of the heart is responsible for the contractile force that pumps blood?

Accepted Answer

Myocardium

Question 7

A patient presents with anemia. Which of the following is most likely decreased in their blood?

Accepted Answer

Hemoglobin

Question 8

Which formula is used to calculate hematocrit ($$Hct) $$given the volume of red blood cells ($$V_{RBC}) $$and total blood volume ($$V_{total}$$)?

Accepted Answer

$$Hct = \frac{V_{RBC}}{V_{total}} 	imes 100$$

Question 9

Which of the following is a major function of the plasma proteins in blood?

Accepted Answer

Regulation of osmotic pressure

Question 10

Which of the following arteries is a major branch of the aortic arch that supplies blood to the head and neck?

Accepted Answer

Brachiocephalic artery

Question 11

Which of the following best describes the role of the skeletal muscle pump in venous blood flow?

Accepted Answer

It assists in the return of blood to the heart by compressing veins

Question 12

Which of the following is a characteristic feature of cardiac muscle tissue?

Accepted Answer

Striated cells with intercalated discs

Question 13

Which of the following is NOT a major function of white blood cells (WBCs)?

Accepted Answer

Blood clotting

Question 14

Which of the following best describes the function of the ductus arteriosus in fetal circulation?

Accepted Answer

It connects the pulmonary artery to the aorta, bypassing the fetal lungs

Question 15

Which of the following is a correct description of the Circle of Willis?

Accepted Answer

An arterial circle at the base of the brain providing collateral blood flow

Question 16

Which of the following is the correct sequence of blood flow through the heart?

Accepted Answer

Right atrium → Right ventricle → Pulmonary artery → Lungs → Left atrium → Left ventricle → Aorta

Question 17

Which of the following is a major difference between fetal and postnatal circulation?

Accepted Answer

Presence of the foramen ovale in fetal circulation

Question 18

Which of the following is a major branch of the abdominal aorta that supplies blood to the lower limbs?

Accepted Answer

Common iliac artery

Question 19

Which of the following is the main function of the prostate gland?

Accepted Answer

Secretion of a fluid that nourishes and protects sperm

Question 20

Which of the following is the correct formula for calculating cardiac output ($$CO) $$given heart rate ($$HR) $$and stroke volume ($$SV$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Anatomy & Physiology Study Guide: Reproductive System, Cardiovascular System (Heart & Blood), and Blood Vessels

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