Which of the following is a component of the blood-cerebrospinal fluid barrier that functions to protect the brain and spinal cord from harmful blood-borne substances?
A) tight junctions between capillary endothelial cells
B) chemicals secreted by astrocytes
C) tight junctions between ependymal cells
D) thick basement membrane
Answer: C
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The Brain and Cranial Nerves
- As we wage, when does brain mass begin to decline?
- Damage to which of these cranial nerves would cause a person to have difficulty seeing objects close to her face?
- The lining of the ventricles develops from the
- If a person is experiencing difficulties smiling, he may have damage in which cranial nerve?
- Which ventricle is located in the middle of the thalamus?
- If the only function of cranial nerve I is olfaction, then the nerve is to be classified as a (blank) nerve
- The cochlear branch of the vestibulocochlear (VIII) nerve terminates in which region of the brain?
- The bulk of the cerebellum is two halves called the cerebellar
- If the only function of the optic (II) nerve is vision, then the nerve is to be classified as a (blank) nerve
- What is a primary function of the facial nerve (VII)?
- A pathologist is doing an autopsy. Where would she find the vestibulocochlear nerve?
- Which branch of the trigeminal nerve travels through the superior orbit fissure?
- A person with damage to the hypoglossal nerve may have a hard time performing which function?
- The olfactory receptor cells are located where?
- If the only function of the trochlear nerve is movement of the eyeballs, then the nerve is to be classified as a (blank) nerve
- At age 20, Dave's brain weighs about 1500 grams (3 pounds). Approximately what will his brain weigh by age 80?
- The hypoglossal nerve originates in the (blank) and supplies the muscles of the (blank)
- Motor axons that control the trapezius muscle originate from the
- Motor impulses from the (blank) nerve exit the jugular foramen and control the sternocleidomastoid muscle of the neck.
- Which of the following structures feature sensory axons of the vagus nerve which pass through the jugular foramen to end in the pons and medulla oblongata?
- Axons of the branchial motor neurons in the vagus nerve supply muscles belonging to which of the following?
- Axons of the cochlear branch sensory neurons extend to
- Sensory axons of the facial nerve
- The ophthalmic branch of the trigeminal nerve
- The trochlear nerve