Campbell Biology Chapter 49 Part 1

Campbell Biology Chapter 49 Part 1

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Multiple Choice

Which is an INCORRECT statement about simple nerve nets?

• Neurons are randomly positioned relative to one another

• They control contraction and expansion of the gastrovascular cavitiy

• They don't contain nerves

• They are organised into ganglia

Multiple Choice

What is cephalization?

• The presence of a nerve net

• The clustering of sensory organs at the front end of the body

• Organisation of neurons into nerves

• The addition of synapses between neurons

Multiple Choice

Which groups of animals contain ganglia?

• Echinoderms, Molluscs and Arthropods

• Flatworms, Annelids, Insects, Vertebrates and Cnidarians

• Vertebrates, Molluscs, Arthropods, Flatworms and Annelids

• Cnidarians and Echinoderms

Multiple Choice

Which glial cells have the capacity to act as stem cells for neurons?

• Schwann cells

• oligodendrocytes

• microglia

• astrocytes

Multiple Choice

What cells help form the blood brain barrier?

• ependymal cells

• Schwann cells

• astrocytes

• microglia

Multiple Choice

Which two types of glia are myelinated?

• astrocytes and Schwann cells

• Schwann cells and oligodendrocytes

• ependymal cells and microglia

• oligodendrocytes and astrocytes

Multiple Choice

Glia are best described as what in the nervous system?

• Functional neurons that transmit impulses

• Cells that connect neurons

• Support cells that help nourish and regulate neurons

• Brain cells

Multiple Choice

The central nervous system develops from...

• stem cells

• the dorsal nerve cord

• glia

Multiple Choice

Gray matter is primarily made up of?

• neuron cell bodies

• glia

• bundled axons

• cerebrospinal fluid

Multiple Choice

The PNS has two efferent components. What are they?

• the sympathetic and parasympathetic divisions

• the motor system and the autonomic nervous system

• the enteric nervous system and the central nervous system

• it does not have two efferent components

Multiple Choice

Motor control can be both voluntary and involuntary.

• True

• False

Multiple Choice

Afferent means 'to carry away'

• True

• False

Multiple Choice

The autonomic nervous system is generally involuntary

• True

• False

Multiple Choice

Activation of the sympathetic division of the autonomic nervous system brings about what sort of responses?

• voluntary muscle movement

• rest and digest responses

• fight or flight responses

• homeostatic responses

Multiple Choice

A month old human embryo will soon experience rapid and expansive growth of which part of the brain, compared to an amphibian embryo?

• telencephalon

• diencephalon

• metencephalon

• mesencephalon

Multiple Choice

The hindbrain controls what sort of activities?

• regulation of sleep, learning, complex processing

• involuntary activities and coordination of motor activities

• coordination sensory input

Multiple Choice

Interconnected cavities within the brain are called __________ and they contain _______________.

• ventricles; white matter

• meninges; cerebrospinal fluid

• apertures; gray matter

• ventricles; cerebrospinal fluid

Multiple Choice

During human embryological and fetal development, which part of the CNS undergoes the largest increase in mass?

• forebrain

• midbrain

• hindbrain

• spinal cord

Multiple Choice

What region of the hindbrain in a human embryo gives rise to the medulla oblongata?

• telencephalon

• metencephalon

• myelencephalon

• diencephalon