When you raise your hand to answer a question in class, which synovial joint movement allowed this to occur?
a) circumduction
b) adduction
c) elevation
d) abduction
Answer: d) abduction
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The neurotransmitter that is released at neuromuscular junctions and that stimulates skeletal muscle to contract is ______.
A. glutamate B. acetylcholine C. norepinephrine D. GABA
Answer the following statements true (T) or false (F)
1 The supporting structural material of the epiglottis is elastic cartilage. 2 Pads between the spinal vertebrae consist of the structural material called hyaline cartilage. 3 The tough but somewhat flexible material that covers the articular surfaces within synovial joints is fibrocartilage. 4 Collagenous bands connecting muscles to bones are called tendons.
Blood is supplied to the urinary bladder by branches of the
A. median sacral artery. B. external iliac arteries. C. internal iliac arteries. D. inferior mesenteric arteries. E. deep ilial circumflex artery.
Which is NOT a feature of the fluid-mosaic model of plasma membranes
A. Integral membrane proteins are embedded in the membrane. B. Phospholipids form a bilayer. C. Cholesterol associates with phospholipid molecules. D. Carbohydrates are linked to lipids and proteins on the interior surface, forming a glycocalyx layer. E. Peripheral membrane proteins associate with polar regions of integral membrane proteins.