Question 1

Which of the following best describes the difference between anatomy and physiology?

Accepted Answer

Anatomy is the study of the structure of body parts, while physiology is the study of their function.

Question 2

A patient presents with a burn that damages both the epidermis and the entire dermis. Which type of burn does this patient have?

Accepted Answer

Third-degree burn

Question 3

Which of the following best describes a negative feedback system in the human body?

Accepted Answer

A process that reverses the direction of the original stimulus, such as body temperature regulation.

Question 4

Which of the following is the correct formula for calculating the pH of a solution?

Accepted Answer

$$pH = -\log_{10}[H^+]$$

Question 5

A patient is experiencing muscle tetany due to low calcium levels. Which organ system is primarily responsible for regulating blood calcium?

Accepted Answer

Endocrine system

Question 6

Which of the following best describes the role of acetylcholine at the neuromuscular junction?

Accepted Answer

It stimulates muscle contraction by binding to receptors on the muscle cell membrane.

Question 7

Which of the following is a correct description of isotonic muscle contraction?

Accepted Answer

The muscle changes length while the tension remains constant.

Question 8

A patient has a fracture in the shaft of the femur. Which term best describes this location?

Accepted Answer

Diaphysis

Question 9

Which of the following is a function of the sarcoplasmic reticulum in skeletal muscle cells?

Accepted Answer

Storing and releasing calcium ions

Question 10

Which of the following best describes the process of depolarization in a neuron?

Accepted Answer

Sodium ions rush into the cell, making the inside more positive.

Question 11

Which of the following is a correct description of the function of ATP in muscle contraction?

Accepted Answer

ATP provides energy for the myosin head to detach from actin and reset for another contraction cycle.

Question 12

Which of the following is a correct description of the difference between saturated and unsaturated fatty acids?

Accepted Answer

Saturated fatty acids have no double bonds, while unsaturated fatty acids have one or more double bonds.

Question 13

A patient is unable to distinguish between sweet and salty tastes. Which cranial nerve is most likely affected?

Accepted Answer

Facial nerve (CN VII)

Question 14

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

Accepted Answer

Detect dim light and are responsible for night vision

Question 15

Which of the following is the correct sequence of layers in the epidermis from deepest to most superficial?

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 16

Which of the following is a correct description of the function of the pharyngotympanic (Eustachian) tube?

Accepted Answer

It equalizes air pressure between the middle ear and the external environment.

Question 17

A patient has damage to the ventral root of a spinal nerve. Which function is most likely impaired?

Accepted Answer

Motor output to skeletal muscles

Question 18

Which of the following best describes the difference between the sympathetic and parasympathetic divisions of the autonomic nervous system?

Accepted Answer

Sympathetic division prepares the body for 'fight or flight', while parasympathetic division promotes 'rest and digest'.

Question 19

Which of the following is the correct formula for calculating the atomic mass of an element?

Accepted Answer

$$	ext{Atomic mass} = 	ext{Number of protons} + 	ext{Number of neutrons}$$

Anatomy & Physiology I: Comprehensive Study Guide

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