NEW
Font size
Worksheets7.4 Nervous System
Total questions: 24
Worksheet time: 12mins
Reflex arcs are characterized by:
Bidirectional response
Conscious control
Involuntary response
Sensory pathway only
Which neurological condition is characterized by damage to the myelin sheath in the CNS?
Multiple sclerosis
Parkinson's disease
Guillain-Barré syndrome
Schizophrenia
Which area of the brain is responsible for speech production?
Parietal lobe
Occipital lobe
Temporal lobe
Frontal lobe
Which of the following animals exhibits a net-like nervous system?
Planarians
Hydras
Annelids
Arthropods
Which type of receptors are responsible for detecting touch, assisting in balance, and detect sound waves?
Chemoreceptors
Mechanoreceptors
Photoreceptors
Baroreceptors
Which cells form the myelin sheath around axons in the PNS?
Schwann cells
Astrocytes
Oligodendrocytes
Microglia
What is the primary function of ependymal cells in the CNS?
Provide structural support
Scavenge pathogens
Produce cerebrospinal fluid
Form myelin sheath
Which disease results from the destruction of dopamine-producing neurons in the brain?
Multiple sclerosis
Parkinson's disease
Guillain-Barré syndrome
Schizophrenia
Which division of the autonomic nervous system is responsible for the "fight or flight" response?
Sympathetic division
Parasympathetic division
Somatic system
Enteric division
Which division of the nervous system controls conscious skeletal muscle movement?
Sympathetic division
Parasympathetic division
Somatic system
Enteric division
Phineas P. Gage is known for surviving an accident that damaged which part of his brain?
Occipital lobe
Parietal lobe
Temporal lobe
Frontal lobe
Cephalization is characterized by:
Dispersed ganglia throughout the body
Concentration of ganglia and sensory receptors in the head
Lack of sensory receptors
Absence of ganglia
What is the function of filiform papillae on the tongue?
Taste sensation
Detecting chemicals
Mechanical sense of food
Heat sensing
Which type of neuron is typically characterized by having a single short process extending from the cell body?
Unipolar cell
Bipolar cell
Multipolar cell
Pseudounipolar cell
In an action potential, which step corresponds to the phase where the K+ channels open and the cell becomes more polar?
Resting potential
Stimulus threshold
Depolarization
Repolarization
Hyperpolarization
Which structure in the inner ear is responsible for sensing gravity and linear acceleration?
Cochlea
Semicircular canals
Ossicles
Ampullae of Lorenzini
What is the primary function of chemoreceptors?
Detect mechanical pressure
Regulate blood pressure
Sense changes in temperature
Respond to chemical stimuli
The resting membrane potential of a neuron is maintained by:
Reaching Threshold
Sodium/Potassium Pump
Repolarization
Depolarization
What is the primary function of nociceptors?
Detect mechanical pressure
Regulate blood glucose levels
Sense changes in temperature
Signal pain sensations to the brain
Nearsightedness is caused by
eye structure that focuses an image in front of the retina.
uneven curvature of the cornea.
uneven curvature of the lens.
eye structure that focuses an image posterior to the retina
all of these.
Which of the following is(are) true regarding whale sensory systems?
Like fishes, they use lateral line systems for navigation.
Their jaws pick up sound vibrations in the water and transmit them to their middle ears.
They collect sound waves using external ears.
All whales have auditory canals leading to their middle ears.
All of these are true.
Rhodopsin...
is a pigment.
is found in rods.
absorbs photons of blue-to-green light.
is concentrated at the edges of the retina.
includes all of these descriptions.
The organ of Corti...
functions in the awareness of motion and the sense of equilibrium.
controls the sense of depth perception.
converts sound vibrations into impulses that enable hearing.
secretes cerebrospinal fluid.
Nearsightedness is caused by...
uneven curvature of the cornea.
eye structure that focuses an image in front of the retina.
uneven curvature of the lens.
eye structure that focuses an image posterior to the retina.
