In the diagram, which labeled structure prevents blood flow from the right ventricle back into the right atrium?

a) A
b) B
c) C
d) D
e) E


b

Anatomy & Physiology

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________ exists when the immune system does not respond to a particular antigen

A) Immunity B) Memory C) Adaptation D) Tolerance E) Versatility

Anatomy & Physiology

The superior ________ arteries supply the diaphragm.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Which of the following vessels supplies 80% of the cerebrum with oxygenated blood?

A. Superficial temporal artery B. Occipital artery C. Middle cerebral artery D. Anterior cerebral artery E. Internal carotid artery

Anatomy & Physiology

The target organ of thyrotropic hormone (TH), or thyroid-stimulating hormone (TSH), is the ________ gland.

A) adrenal B) pineal C) pituitary D) thyroid

Anatomy & Physiology