What is the largest and most powerful muscle of the erector spinae muscle group?

A. Longissimus thoracis
B. Iliocostalis thoracis
C. Longissimus capitis
D. Iliocostalis lumborum


Ans: A. Longissimus thoracis

Anatomy & Physiology

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A. aggregating to form a plug and manufacturing fibrinogen. B. secreting nitric oxide and releasing chemicals that promote vasoconstriction. C. secreting prostacyclin, which prevents platelet aggregation on blood vessel endothelium. D. aggregating to form a plug and releasing chemicals that promote vasoconstriction. E. secreting tissue plasminogen activator (t-PA) whenever they come into contact with collagen.

Anatomy & Physiology

The connective tissue that surrounds a fascicle is called the ________

A) endoneurium B) perineurium C) epineurium D) perimysium E) myelin

Anatomy & Physiology

Which of the following is not controlled by the ANS?

A) skeletal muscle system B) cardiovascular system C) respiratory system D) digestive system E) urinary system

Anatomy & Physiology

Tendons and ligaments attach to the ________ of bone

A) osteocytes B) lacunae C) periosteum D) calcium phosphate E) central canals

Anatomy & Physiology