Which of the following has the highest rate of energy expenditure?

a. sexual intercourse
b. bicycling on a level surface
c. swimming
d. jogging
e. walking up stairs


E

Anatomy & Physiology

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When a pacemaker potential in the SA node reaches threshold,

A. many voltage-gated Ca2+ channels open. B. permeability of the cell does not change. C. voltage-gated Ca2+ channels close. D. the permeability to K+ increases. E. resting membrane potential has been restored.

Anatomy & Physiology

The pectineus muscle is located ______ and performs _____ of the hip joint.

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

Anatomy & Physiology

An anatomical term that means the same as "ventral" is

A) posterior. B) inferior. C) abdominal. D) anterior. E) superior.

Anatomy & Physiology

________ yield about 4 kcal/g when completely oxidized, whereas ________ yield about 9 kcal/g

A) Proteins and carbohydrates; fats B) Proteins; fats and carbohydrates C) Carbohydrates and fats; proteins D) Carbohydrates; fats and proteins E) Fats; carbohydrates and proteins

Anatomy & Physiology