List and summarize the five patterns of fascicles seen in skeletal muscles
What will be an ideal response?
The five fascicle patterns are parallel, convergent, pennate, spiral, and fusiform. A parallel muscle has evenly spaced fascicles attaching to a tendon that is about the same width as the muscle. A convergent muscle is a broad muscle that uniformly tapers to a single tendon. A pennate muscle has fibers and fascicles that attach to a tendon at an angle in such a way that it resembles a feather. A spiral muscle may wrap around a bone or have the twisted appearance of towel wrung out to dry. Fusiform muscles tend to be thicker in their belly and tapered at their ends.
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Preganglionic neurons of the autonomic nervous system are located in
A) the brain. B) the lateral gray horns of the spinal cord. C) the posterior gray horns of the spinal cord. D) both the brainstem and the lateral gray horns of the spinal cord. E) the cerebrum.
Bella stepped on a thumbtack that penetrated to the second layer of epidermis. Which cells were damaged?
A) granulosum B) lucidum C) spinosum D) basale
Briefly explain how mitosis and meiosis differ
What will be an ideal response?
In an exchange reaction, covalent bonds are broken and new covalent bonds are formed.
Answer the following statement true (T) or false (F)