The word anencephaly means：

A. below the cerebrum
B. absence of a cerebellum
C. absence of a brain
D. membrane of a brain

The cells involved in most nervous system tumors are called

A. motor neurons
B. sensory neurons
C. interneurons
D. neuroglia

The “fight-or-flight” response is promoted by the

A. sympathetic nervous system
B. parasympathetic nervous system
C. somatic nervous system
D. reflex arc

The cerebrum is divided into left and right hemispheres by the

A. deep sulcus
B. lateral sulcus
C. longitudinal sulcus
D. insula

An abnormal accumulation of CSF within the brain is called

A. cerebral hemorrhage
B. subdural hematoma
C. hemiplegia
D. hydrocephalus

The nervous system has three main functions, _____、_____and _____。

The Autonomic system consists of the _____and the _____division.

Each of the two hemispheres are divided into four separated lobes: the _____ lobe, the ____ lobe, the ____ lobe and the____ lobe.

The somatic nervous system consists of afferent fibers that receive information from external sources, and efferent fibers that are responsible for muscle contraction.

A. 对
B. 错

The neurons of the brain release excitatory neurotransmitters more than inhibitory neurotransmitters.

A. 对
B. 错