Question 1

Which of the following best illustrates a humoral stimulus for hormone release?

Accepted Answer

A rise in blood glucose levels stimulates the pancreas to release insulin.

Question 2

Which statement best describes the concept of antagonism in hormone interactions?

Accepted Answer

One hormone opposes the action of another hormone.

Question 3

Which organ is primarily affected by growth hormone (GH)?

Accepted Answer

All of the above

Question 4

Which of the following best describes the thymus gland?

Accepted Answer

It is most active during childhood and is involved in T cell maturation.

Question 5

Which hormone is released in response to stress and low blood glucose, and what is its primary function?

Accepted Answer

Cortisol; increases blood glucose by stimulating gluconeogenesis

Question 6

Which layer of the alimentary canal is primarily responsible for nutrient absorption?

Accepted Answer

Mucosa

Question 7

Where does the majority of nutrient absorption occur in the digestive tract?

Accepted Answer

Small intestine

Question 8

Which of the following best describes the main function of the large intestine?

Accepted Answer

Absorption of water and electrolytes, and formation of feces

Question 9

Which molecule is the main nutrient used in cellular respiration?

Accepted Answer

Glucose

Question 10

Which process is an example of mechanical breakdown in the digestive system?

Accepted Answer

Churning of food by the stomach

Question 11

Gas exchange in the respiratory tract occurs at which specific structure?

Accepted Answer

Alveoli

Question 12

During inspiration, which of the following occurs?

Accepted Answer

Diaphragm contracts, thoracic volume increases, and lung pressure decreases

Question 13

How many oxygen molecules can bind to a single molecule of hemoglobin?

Accepted Answer

Four

Question 14

Which of the following best describes what occurs during an asthma attack?

Accepted Answer

Bronchioles constrict, reducing airflow

Question 15

Which of the following is a regulatory function of blood?

Accepted Answer

Maintaining body temperature and pH balance

Question 16

Which organ produces and secretes erythropoietin in response to hypoxia?

Accepted Answer

Kidney

Question 17

A person with type AB+ blood can safely receive blood from which of the following donors?

Accepted Answer

Any blood type

Question 18

What is the main function of the lymphatic system?

Accepted Answer

Returning excess interstitial fluid to the bloodstream and providing immune defense

Question 19

Which structural feature increases the permeability of lymphatic capillaries?

Accepted Answer

Overlapping endothelial cells that function as one-way mini-valves

Question 20

Which of the following best describes the function of regulatory T cells?

Accepted Answer

Suppress immune responses to prevent autoimmunity

ANP College Course Study Guide: Step-by-Step Guidance for Key Systems

Study Guide - Practice Questions