Chapter 6 Flashcards
The Nervous System
Normally, sodium and potassium leakage channels differ because ___________________.
sodium ions diffuse through leakage channels into the cell, but potassium ions diffuse through leakage channels out of the cell
A resting membrane potential of -70 mV indicates that the ________________.
charges lining the inside of the plasma membrane are negative compared to the charges lining the outside
How is the anatomy of a nerve organized?
- Neuron axons are bundled in fascicles
- Epineurium surrounds a nerve
How do Broca’s area and Wernicke’s area compare?
- They are both in the cerebrum
- Problems in either area are called aphasia
- They both function for language
Taste and facial expression; Facial nerve; Both are functions of which cranial nerve?
CN VII (cranial nerve 7)
Eye movement; Oculomotor; Motor are functions of which cranial nerve?
CN III (cranial nerve 3)
Taste and swallowing; Glossopharyngeal; Both are functions of which cranial nerve?
CN IX (cranial nerve 9)
Hearing and equilibrium; Auditory; Sensory are functions of which cranial nerve?
CN VIII (cranial nerve 8)
What statement about spinal nerves is incorrect?
The ventral roots contain ganglion and the dorsal roots do not
Brain damage to Wernicke’s area will result in ______.
inability to understand spoken language
Which type of neuroglial cell functions to form the blood-brain barrier?
Astrocyte
Which statement about the ganglion is true?
A ganglion is found in the dorsal roots of the spinal nerves
Which of the following does not represent the correct number of spinal nerves?
L1-6
What is the function of CSF?
- Cushion the brain from impact
- Provide buoyancy so the brain is not damaged by the bony floor of the skull
- Rinse the brain and spinal cord of metabolic waste
Functions of the Hypothalamus
- Temperature regulation
- Sexual development
- Autonomic functions
