Medical Authorities Recommend __________ of Sleep Per Night as Optimal

question 55

Multiple Choice

Medical authorities recommend __________ of sleep per night as optimal, but among midlife adults in the United States, more than __________ report receiving less than 7 hours of sleep at least occasionally.

• A)5-7 hours; three-quarters
• B)6-8 hours; two-thirds
• C)7-9 hours; one-third
• D)9-11 hours; one-half

---

Definitions:

Cranial Nerves

Twelve pairs of nerves that emerge directly from the brain, not through the spinal cord, and affect areas such as the head and neck.

Cerebellum

A part of the brain at the back of the skull, which regulates movement, posture, and balance.

Traumatic Head Injury

Physical trauma to the head that can lead to various levels of brain injury, ranging from minor concussions to severe brain damage.

Corpora Quadrigemina

A structure in the midbrain consisting of four bodies, the superior and inferior colliculi, involved in visual and auditory processes.