The ion that plays a key role in initiating electrical signals in neurons is

A) Ca2+.
B) Cl-.
C) K+.
D) Na+.


D) Na+.

Anatomy & Physiology

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Using Figure 10.2, match the following:



1) Arm abduction and rotation.
2) Prime mover to protract and hold the scapula against the chest wall; rotates scapula so that its inferior angle moves laterally and upward.
3) A muscle that has its origin on the manubrium of the sternum and medial portion of the clavicle, and its insertion in the mastoid process of the temporal bone.
4) Pectoralis minor.
5) Coracobrachialis

Anatomy & Physiology

Which of the following is NOT governed by the Food and Drug Administration (FDA)?

a. monitoring animals used for human consumption b. manufacturing standards of food additives c. monitoring medications used in animals d. issuing licenses to veterinarians to use controlled substances

Anatomy & Physiology

The delivery of oxygen and nutrients to the tissues of the body is accomplished through the ________ circulation.

A. systemic B. peripheral C. hepatic D. pulmonary

Anatomy & Physiology

Most of the fat in the body is stored in what form?

A) Cholesterol B) Fatty acids C) Triglycerides D) LDL E) HDL

Anatomy & Physiology