Chapter 41

A radially symmetrical animal such as \(H y d r a\) is likely to have (a) a forebrain (b) a nerve net (c) cerebral ganglia (d) a ventral nerve cord (e) cerebral ganglia and a nerve net

In vertebrate embryos the brain develops from the (a) spinal cord (b) sympathetic nervous system (c) parasympathetic nervous system (d) neural tube (e) forebrain

Which part of the brain maintains posture, muscle tone, and equilibrium? (a) cerebrum (b) medulla (c) cerebellum (d) neocortex (e) thalamus

Which part of the brain controls autonomic functions and regulates body temperature? (a) cerebrum (b) hypothalamus (c) cerebellum (d) pons (e) thalamus

In a withdrawal reflex, following reception a signal is transmitted by (a) a motor neuron to an association neuron in the CNS (b) an association neuron in the CNS to an afferent neuron (c) an afferent neuron in the CNS to a motor neuron (d) a sensory neuron to an interneuron in the CNS (e) a sensory neuron to an interneuron in the PNS

Association areas in the human brain are concentrated in the (a) cerebral cortex (b) medulla (c) ventricle (d) hippocampus (e) meninges

The human brain is protected by (a) meninges, cerebrospinal fluid, and skull bones (b) meninges and skull bones only (c) dura mater and fourth ventricle (d) pia mater and skull bones (e) arachnoid, pia mater, cerebrospinal fluid, and ganglia

Which of the following is not a function of the spinal cord? (a) controls many reflex actions (b) transmits information to the brain (c) transmits information from the brain (d) regulates sleep-wake cycles (e) controls the withdrawal reflex

The most prominent part of the amphibian brain is the (a) midbrain (b) medulla (c) cerebellum (d) neocortex (e) cerebrum

The visual centers are located in the (a) parietal lobes (b) thalamus (c) occipital lobes (d) limbic lobes (e) frontal lobes

Implicit memory is (a) short-term memory (b) long-term memory (c) factual knowledge of people, places, or objects (d) unconscious memory for perceptual or motor skills (e) learning that depends on long-term depression (LTD)

Long-term potentiation (LTP) (a) is mainly the responsibility of cranial nerve \(\mathrm{X}\) (b) is a long-lasting increase in synaptic strength (c) is associated with short-term memory (d) is a long-lasting decrease in synaptic strength (e) occurs mainly during REM sleep

The heart rate is slowed by (a) sympathetic nerves (b) parasympathetic nerves (c) corpus callosum (d) both sympathetic and parasympathetic nerves (e) the hippocampus working together with sympathetic nerves

After taking a mood-altering drug for several weeks, a patient notices it no longer works as effectively. This is an example of (a) psychological dependence (b) withdrawal (c) addiction (d) tolerance (e) neurotransmitter increases