Blood is prevented from flowing back into the left ventricle by the:
A. aortic semilunar valve.
B. tricuspid valve.
C. pulmonary semilunar valve.
D. mitral valve.
Answer: D. mitral valve.
Anatomy & Physiology
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In other mammals, the ________ glands function as scent glands, providing an important form of communication.
A) eccrine B) sebaceous C) apocrine D) mammary E) merocrine
Anatomy & Physiology
Which of the following muscles that move(s) the pectoral girdle retract(s) and elevate(s) the scapula?
A. Pectoralis minor B. Serratus anterior C. Levator scapulae D. Rhomboid major and minor E. Trapezius
Anatomy & Physiology
Which ion is primarily reabsorbed when hydrogen ions are secreted?
A. Potassium B. Sodium C. Chloride D. Calcium
Anatomy & Physiology
The pH of the contents of the stomach lumen is considerably higher than that of interstitial fluid
Indicate whether the statement is true or false.
Anatomy & Physiology