The trachea splits into _______ main stem bronchi?

A. One
B. Two
C. Three
D. Four


Answer: B. Two

Anatomy & Physiology

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Sustained fevers that are 1 ° C above normal core body temperature usually lead to irreversible brain damage

Indicate whether this statement is true or false.

Anatomy & Physiology

Label R represents which of the following structures?


A) hilum
B) renal pelvis
C) renal cortex
D) renal medulla
E) renal sinus

Anatomy & Physiology

What type of chemical messenger is released from neurons to activate an adjacent cell?

A. paracrine B. neurotransmitter C. autocrine D. endocrine

Anatomy & Physiology

Which of the following statements is true about the endocrine system?

A) The endocrine system is larger in the elderly. B) The endocrine system is one of the few systems that is unaffected by diet and exercise. C) Its function stays constant as a person ages. D) The use of anabolic steroids can damage the endocrine system.

Anatomy & Physiology