Which of the following statements about the muscles of the head is incorrect? Paired muscles Have different actions based on whether one/both parts of the pair contract The splenius capitis muscle is often called the prayer muscle

The splenius capitis muscle is sometimes called the prayer muscle because it causes the head to bow.

The afferent pathways of the autonomic nervous system A-Stimulate fight or flight B-Maintain normal resting activity C-Carry Feedback info to integrating centers in the brain D- A&B

Carry feedback information to integrating centers in the brain

In the human nervous system: -most of the cells are neurons. -most of the cells are glia cells. -there are almost equal numbers of glia cells and neurons. -the ratio of cells is unknown because of the complexity of the nervous system.

Most of the cells are glia cells

Parasympathetic neuron cell bodies are located in: -white columns of the sacral segments of spinal cord. -lateral gray columns of thoracic segments of spinal cord. -nuclei of the brainstem and the lateral gray columns of sacral cord.

nuclei of the brainstem and the lateral gray columns of the sacral cord

The peripheral nervous system includes:

only cranial nerves, spinal nerves and their branches

Which of the following statements is not true of the spiral organ of Corti? The "hairs" of the receptor cells are embedded in the tectorial membrane The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid and fixed

The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid and fixed

Which division of the ANS sends fibers to the heart? Sympathetic Parasympathetic Both

Sympathetic and Parasympathetic

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Anatomy

Week 6-12 (Assignment 2)

Question	Answer
Which of the following statements about the muscles of the head is incorrect? Paired muscles Have different actions based on whether one/both parts of the pair contract The splenius capitis muscle is often called the prayer muscle	The splenius capitis muscle is sometimes called the prayer muscle because it causes the head to bow.
A muscle that assists with mastication is the:	Masseter
The afferent pathways of the autonomic nervous system A-Stimulate fight or flight B-Maintain normal resting activity C-Carry Feedback info to integrating centers in the brain D- A&B	Carry feedback information to integrating centers in the brain
Neurons in the CNS have less chance of regenerating for all of the following reasons except -no neurolemma in cells of the CNS. -astrocytes fill in the path of regrowth. - microglia lay down scar tissue.	Microglia lay down scar tissue
In the human nervous system: -most of the cells are neurons. -most of the cells are glia cells. -there are almost equal numbers of glia cells and neurons. -the ratio of cells is unknown because of the complexity of the nervous system.	Most of the cells are glia cells
Along a neuron, the correct pathway for impulse conduction is	Dendrite, cell body, and axon
Interneurons reside in the	CNS only
The brain has ____ major divisions	Six
T/F: All cell bodies of the autonomic nervous system are located within the CNS.	False
T/F: Sensory neurons can operate in autonomic reflex arcs.	True
Parasympathetic neuron cell bodies are located in: -white columns of the sacral segments of spinal cord. -lateral gray columns of thoracic segments of spinal cord. -nuclei of the brainstem and the lateral gray columns of sacral cord.	nuclei of the brainstem and the lateral gray columns of the sacral cord
The phrenic nerve is found in the ___ plexus	Cervical
The cranial nerve that arises from the spinal cord is the	Accessory
T/F: Some parasympathetic postganglionic neurons have their cell bodies in nuclei in the brainstem	False
The peripheral nervous system includes:	only cranial nerves, spinal nerves and their branches
Which of the following statements is not true of the spiral organ of Corti? The "hairs" of the receptor cells are embedded in the tectorial membrane The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid and fixed	The tectorial membrane bends with vibrations, whereas the basilar membrane is rigid and fixed
From which vessels do myocardial cells receive blood?	Coronary arteries
Which division of the ANS sends fibers to the heart? Sympathetic Parasympathetic Both	Sympathetic and Parasympathetic

Created by: rgriffis

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