Question 1

Which anatomical plane divides the body into anterior and posterior sections?

Accepted Answer

Coronal (frontal) plane

Question 2

A patient presents with a lesion in the right hypochondriac region. Which organ is most likely affected?

Accepted Answer

Liver

Question 3

Which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 4

Which type of cellular junction prevents the passage of substances between adjacent epithelial cells, such as in the lining of the stomach?

Accepted Answer

Tight junctions

Question 5

A patient with a second-degree burn has damage extending into which layer of the skin?

Accepted Answer

Dermis

Question 6

Which cell type is responsible for bone resorption during bone remodeling?

Accepted Answer

Osteoclasts

Question 7

Which of the following best describes the flow of blood through the heart starting from the right atrium?

Accepted Answer

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

Question 8

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

Accepted Answer

Storing and releasing calcium ions

Question 9

A patient with type O negative blood can safely receive which of the following blood types in a transfusion?

Accepted Answer

Type O negative

Question 10

Which neuroglial cell forms the myelin sheath in the central nervous system?

Accepted Answer

Oligodendrocyte

Question 11

Which structure is responsible for the production of cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 12

Which neurotransmitter is released by all preganglionic neurons in the autonomic nervous system?

Accepted Answer

Acetylcholine

Question 13

Which of the following is a proprioceptor?

Accepted Answer

Muscle spindle

Question 14

Which hormone is produced by the beta cells of the pancreas?

Accepted Answer

Insulin

Question 15

Which of the following best describes the flow of lymph through a lymph node?

Accepted Answer

Afferent lymphatic vessel → Subcapsular sinus → Medullary sinus → Efferent lymphatic vessel

Question 16

Which structure prevents food from entering the trachea during swallowing?

Accepted Answer

Epiglottis

Question 17

Which enzyme is secreted by chief cells in the stomach?

Accepted Answer

Pepsinogen

Question 18

Which part of the nephron is primarily responsible for filtration of blood?

Accepted Answer

Glomerulus

Question 19

Where does fertilization of the human egg typically occur?

Accepted Answer

Ampulla of the fallopian tube

Question 20

During which stage of meiosis II do sister chromatids separate and move toward opposite poles?

Accepted Answer

Anaphase II

BIOL 3446 Final Exam Review Guidance

Study Guide - Practice Questions