Ch 9-12 Review

Front

What are the four main regions of the brain?

Back

Cerebral hemispheres, Brain stem, Cerebellum, Diencephalon.

Front

Which structure is not one of the four main regions of the brain?

Back

Cerebral aqueduct.

Front

What are the functions of astrocytes and oligodendrocytes?

Back

Astrocytes support and maintain the blood-brain barrier; oligodendrocytes produce myelin in the central nervous system.

Front

Which two cells have the closest functions?

Back

Schwann and oligodendrocytes.

Front

What type of muscle has branching and intercalated discs?

Back

Cardiac muscle.

Front

What are the characteristics of skeletal muscle fibers?

Back

Skeletal muscle fibers have striations due to the arrangement of thick and thin filaments in the myofibril.

Front

What is the typical sleep requirement for teenagers?

Back

Most teenagers need 9-12 hours of sleep for optimal health and function.

Front

What is the role of the brain stem?

Back

The brain stem controls basic life functions such as breathing, heartbeat, and blood pressure.

Front

What is the function of Schwann cells?

Back

Schwann cells produce myelin in the peripheral nervous system.

Front

What is the difference between visceral smooth muscle and multiunit smooth muscle?

Back

Visceral smooth muscle contracts as a unit, while multiunit smooth muscle contracts independently.