Which of the following muscles functions to maintain an erect spinal column and head?
A) erector spinae
B) biceps brachii
C) triceps brachii
D) rectus femoris
E) biceps femoris
A) erector spinae
Anatomy & Physiology
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The duplicated chromosome that appears during prophase consists of two genetically identical structures called sister ________.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
The vitamin that plays a role in maintaining epithelia and is required for the synthesis of visual pigments is vitamin
A) A. B) B. C) C. D) D. E) E.
Anatomy & Physiology
A/an__________________ is a point or small spot
Fill in the blank(s) with correct word
Anatomy & Physiology
The partial pressure of carbon dioxide (PCO2 ) in the blood of pulmonary capillaries is approximately:
A) 35 mm Hg. B) 70 mm Hg. C) 50 mm Hg. D) 45 mm Hg.
Anatomy & Physiology