What layer of the skin forms a watertight, protective seal for the body?

A. dermis
B. epidermis
C. muscular layer
D. subcutaneous layer


Answer: B. epidermis

Anatomy & Physiology

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Secretion of atrial natriuretic peptide

A. increases potassium excretion. B. decreases sodium excretion. C. increases sodium excretion. D. decreases potassium excretion.

Anatomy & Physiology

The modality of a stimulus can be determined within the central nervous system by

A) lateral inhibition. B) frequency coding. C) population coding. D) adequate stimulus for the sensory receptor cell.

Anatomy & Physiology

A local increase in potassium increases the vasodilation of arterioles

Indicate whether the statement is true or false

Anatomy & Physiology

Which statement accurately describes amino acids?

A. There are twenty varieties, with each type having a different C-terminal end. B. There are twenty varieties, with each type having a different R group. C. There are over 200 varieties, with each type having a different C-terminal end. D. There are over 200 varieties, with each type having a different R group.

Anatomy & Physiology