After death, rigor mortis lasts until
A) ATP is produced.
B) T-tubules recapture calcium ions.
C) sodium ions are released by the sarcoplasmic reticulum.
D) sarcomeres lengthen.
E) myofilaments are broken down.
E) myofilaments are broken down.
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A tendon is ________, whereas an aponeurosis is ________.
A. a broad sheet of dense connective tissue that connects bones to bones; cordlike and connects muscles to muscles B. cordlike and connects bones to bones; a broad sheet of dense connective tissue that connects muscles to muscles C. a broad sheet of dense connective tissue that connects muscles to muscles; cordlike and connects bones to bones D. cordlike and connects muscles to bones; a broad sheet of dense connective tissue that connects muscles to muscles
In tuberculosis
A) alveoli collapse after near-drowning. B) fibrous connective tissue forms around the sites of bacterial infection. C) a viral infection increases fluid in the lung. D) an obstruction blocks airflow to alveoli, which collapse, deflating part or all of a lung.
Extrinsic control of arteriolar radius
a. is accomplished primarily by the sympathetic nervous system. b. is important in the regulation of arterial blood pressure. c. can be overridden by local adjustments. d. is accomplished primarily by the sympathetic nervous system and is important in the regulation of arterial blood pressure. e. all of these answers.
Which of the following cranial nerves has a parasympathetic component?
A. facial B. trochlear C. trigeminal D. hypoglossal E. accessory