Biology Test Biology Human Anatomy & Physiology 3

Question 1

Which layer of the skin contains melanocytes that produce melanin?

Accepted Answer

Stratum basale

Answer

Stratum corneum

Answer

Stratum lucidum

Answer

Stratum granulosum

Question 2

The bicuspid (mitral) valve controls blood flow between which two chambers?

Accepted Answer

Left atrium and left ventricle

Answer

Right atrium and right ventricle

Answer

Left ventricle and aorta

Answer

Right ventricle and pulmonary artery

Question 3

Which region of the brain regulates body temperature, hunger, and the release of pituitary hormones?

Accepted Answer

Hypothalamus

Answer

Thalamus

Answer

Cerebellum

Answer

Medulla oblongata

Question 4

Surfactant, which reduces surface tension in alveoli, is produced by which cell type?

Accepted Answer

Type II pneumocytes

Answer

Type I pneumocytes

Answer

Goblet cells

Answer

Alveolar macrophages

Question 5

What term describes the movement of a limb away from the midline of the body?

Accepted Answer

Abduction

Answer

Adduction

Answer

Flexion

Answer

Extension

Question 6

Which enzyme in saliva begins the chemical digestion of carbohydrates?

Accepted Answer

Amylase

Answer

Pepsin

Answer

Lipase

Answer

Trypsin

Question 7

The trachea bifurcates at the carina to form the two primary bronchi at approximately which vertebral level?

Accepted Answer

T4-T5

Answer

C7

Answer

L1

Answer

T10