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Name the muscle of the eye indicated by the arrow.

A nerve fiber is enclosed in a fibrous sleeve known as the perineurium.

The blood-brain barrier prevents harmful substances from entering the brain. Which structures create the blood-brain barrier (BBB)?

Name the inner portion of the endocrine gland indicated by the arrow.

The ascending tracts of the spinal cord transmit signals across three neurons from their origin to their destination in the brain.

Compared to the nervous system, the endocrine system reacts slower, but its effects are long-lasting.

Antidiuretic hormone is produced in the________________ and stored in the ___________________ gland.

The recognition of spoken and written language can be found in an area of the brain known as Wernicke.

Which of the following means “pain in the ear”?

Which of the following is the eardrum, the semitransparent tissue that vibrates to transmit sound waves to the ossicles?