Bio Week 8

Which of the brain lobes is responsible for problem solving and emotions?

• Temporal lobe

• Occipital lobe

• Parietal lobe

• Cerebellum

•  Frontal lobe

Which of the following statements regarding Myelin is correct?

• It slows the transmission of an impulse along an axon

• It is primarily found within the peripheral nervous system

• It contains neurotransmitters

• It is primarily found within the central nervous system

Which of the following statements is INCORRECT?

• Neuroglial cells transmit action potentials.

• Neuroglial cells provide nutritional support to neurons.

• Neuroglial cells have the ability to divide.

• Neuroglial cells provide structural support to neurons.

• Neuroglial cells comprise ~90% of all cells within the brain

The sympathetic and parasympathetic nervous systems are subdivisions of            :

• The central nervous system.

• The somatic nervous system.

• The autonomic nervous system.

• The voluntary nervous system.

Which of the following is not a type of glial cell

• Neuron

• Astrocytes.

• Ependymal cells.

• Oligodendrocytes.

• Satellite cells.

Which of the following statements regarding cells of the nervous system is TRUE?

• Neurons make up approximately 90% of all cells in the CNS.

• Sensory neurons transmit signals from the CNS to the PNS.

• Glial cells send action potentials from the CNS to the PNS.

• Schwann cells are a type of glial cell found in the PNS.

• Ependymal cells make up the blood brain barrier.

The charge of the neuronal membrane at the peak of depolarisation is:

• -90mV

• -70mV

• -55mV

• 0mV

• +40mV

Which of the following statements about neurons is correct?

• They are the most abundant type of nerve cell

• They communicate with other neurons via a synapse

• They are able to regenerate

• Neuron is an interchangeable term for a nerve

• They are all multipolar

Information passes through the neuron in which order?

• Axon terminal, soma, axon, dendrite.

• Axon terminal, axon, soma, dendrite.

• Dendrite, soma, axon, axon terminal.

• Soma, dendrite, axon, axon terminal.

Which of the following statements regarding sensory receptors is CORRECT?

• Nociceptors can detect pressure and vibration within the skin.

• Temperature is detected via nociceptors in the skin.

• Mechanoreceptors detect changes within chemical environment of the body.

• Photoreceptors detect changes in light.

• Mechanoreceptors detect painful stimuli all over the body.