Question 1

Which of the following best describes the principle of complementarity in human anatomy and physiology?

Accepted Answer

Function always reflects structure; what a structure can do depends on its specific form.

Question 2

Which feedback mechanism is primarily responsible for maintaining homeostasis in the human body?

Accepted Answer

Negative feedback

Question 3

A patient presents with a burn that affects only the epidermis. Which layer of the skin is damaged?

Accepted Answer

Epidermis

Question 4

Which of the following is a function of osteoclasts in bone tissue?

Accepted Answer

Bone resorption

Question 5

Which equation best represents the calculation of the resting membrane potential ($$V_m) in a $$neuron?

Accepted Answer

$$V_m = \frac{RT}{F} \ln \left( \frac{[K^+]_{out}}{[K^+]_{in}} \right)$$

Question 6

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones directly into the blood; exocrine glands secrete products onto body surfaces or into body cavities.

Question 7

A patient is unable to sweat due to a genetic disorder. Which gland is most likely affected?

Accepted Answer

Eccrine gland

Question 8

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Hormone secretion

Question 9

Which type of muscle tissue is involuntary and striated?

Accepted Answer

Cardiac muscle

Question 10

Which of the following best describes the sliding filament model of muscle contraction?

Accepted Answer

Actin filaments slide past myosin filaments, shortening the sarcomere.

Question 11

Which of the following is the correct order of events at the neuromuscular junction leading to muscle contraction?

Accepted Answer

Release of acetylcholine, depolarization of sarcolemma, action potential generation, calcium release

Question 12

Which of the following best describes the function of the myelin sheath?

Accepted Answer

It insulates axons and increases the speed of nerve impulse conduction.

Question 13

Which of the following is a characteristic of synovial joints?

Accepted Answer

They contain a joint cavity filled with synovial fluid.

Question 14

Which neurotransmitter is most commonly released at neuromuscular junctions?

Accepted Answer

Acetylcholine

Question 15

Which of the following best describes the function of the cerebellum?

Accepted Answer

Coordinates voluntary muscle movements and balance

Question 16

Which equation best represents the calculation of body mass index (BMI)?

Accepted Answer

$$BMI = \frac{weight\ (kg)}{[height\ (m)]^2}$$

Question 17

Which of the following is a function of the parasympathetic division of the autonomic nervous system?

Accepted Answer

Promotes digestion and energy storage

Question 18

Which of the following best describes the role of rods in the retina?

Accepted Answer

Vision in dim light and peripheral vision

Question 19

Which of the following is the correct sequence for the pathway of light through the eye to the retina?

Accepted Answer

Cornea → aqueous humor → lens → vitreous humor → retina

Question 20

Which of the following best describes the function of the limbic system?

Accepted Answer

Processes emotions and memory

Human Anatomy & Physiology I (BIOL 2401) – Course Syllabus and Study Guide

Study Guide - Practice Questions