WorksheetsStudy Guide: Nervous system
Total questions: 64
Worksheet time: 36mins
what is the nervous system?
The ULTMATE control center
The cerebellum, cerebrum, and brainstem
menings and cerebrospinal fluid
Sensory neurons, integration and motor output
Name the two types of cells that make up the nervous tissue
White and grey matter
Cerebrum and brainstem
Neurons and neuroglia
Neurons and menings
Describe Neurons
(a)
Describe neuroglia
(a)
what does the sensory neurons do?
Receives stimuli via millions of sensory receptors throughout the body.
Processes the input stimuli and decides what should be done.
Activates effector organs to cause a response.
life support containing the nucleus and most organelles.
what is integration?
receives stimuli via millions of sensory receptors throughout the body
Activates effectors organs to cause a response
Functions in learning, speech, emotion, reasoning, vision, hearing and fine movements.
Process the input stimuli and decides what should be done.
What is the function of the motor output?
Maintains posture and balance
cushions the brain from injury
Activates effector organs to cause a response.
Receives stimuli via millions of sensory receptors throughout the body.
What are the components of CNS? (Select Two)
Brain stem
Spinal Cord
Integration
menings
What are meninges?
excitable cells that respond to stimuli
Layers of tissue surrounding the brain
cerebrospinal fluid
cushions the brain from injury
What is the purpose of the cerebrospinal fluid?
Cushions the brain from injury
Functions in. learning, speech, emotion, reasoning, vision, hearing and fine movements
Maintains posture and balance
fight or flight
What is the nickname of the parasympathetic division?
Rest and Digest
Fight or Flight
Nickname of the symapthetic division?
Fight or Flight
Rest and Digest
Which of the following is the function of the cerebellum?
(Choose two)
Coordinates timing and patterns for smooth and agile subconscious movements.
Learning, speech, reasoning, vision, hearing and fine movements.
Maintains posture and balance.
Coordinates a lot of automatic functions.
Where is the cerebellum located?
right hemisphere
under the cerebrum
under the cerebellum
What is the cerebrum known as?
Right and left hemispheres
4 lobes
the largest part of the brain
brain and spinal cord
Function of the cerebrum?
posture and balance
Relays info to the spinal cord
learning, speech, emotions, reasoning, vision, hearing and fine movements
Brain stem is located where?
Base of the cerebrum, posterior to the cerebellum
Posterior to the cerebrum, anterior to the cerebellum
Base of the cerebrum, anterior to the cerebellum
under the cerebellum
Brainstem's function is what?
Relays info between the brain and heart
Relays info between. rest of brain and body
Automatic functions
Relays info between the rest of the brain and spinal cord
Which two are the components of the PNS?
Spinal nerves
Spinal Cord
Sensory nerves
cranial nerves
Many function of the PNS?
Communication between body and heart
Communication between CNS and the rest of the body
Communication between the brain and heart
Conducts information in the brain and moves it to the muscles
What is the function of of the motor division?
Communication service between brain and heart
Conducts nervous impulses
Conducts information from the brain to effector organs
What two systems does motor division divide into?
Somatic Nervous system and Autonomic Nervous System
Peripheral Nervous system and Central Nervous system
What do somatic nerve fibers do?
rest and digest
innervate cardiac and smooth muscles
innervate skeletal muscles to control involuntary movements
innervate skeletal muscles to control voluntary movements
What are the two divisions the autonomic nervous system?
PNS and CNS
Parasympathetic and Sympathetic
Somatic NS and PNS
Right side of the brain controls what?
Left said of the body
all parts of the body
Right side of the body
your creativity
What is the function of the myelin sheath? (More than one answer)
Increases the speed of the nerve impulse transmission
Receives sensory stimuli
Works with the brain
Covers the axon to protect and electronically insulate them
What is the function of the Soma?
Life support
transmission
works as a path way
What is the function of the Axon Terminal?
Releases neurotransmitters at a synapse
Releases neurotransmitters at dendrites
releases neurotransmitters in the brain
What is the purpose of the Axon?
Keeps the transmission safe
Generates nervous impulse
Generates and transmits nerve impluses
Makes nerve fiber
What is the function of the Nodes of Ranvier?
Speed up the transmission of nerve impulses
Produce myelin sheath
Store neurotransmitters
Generate action potentials
What is the purpose of dendrites?
Main receptor of signals
synapse creator
protects the neurons
Where are the most organelles located?
Soma
Necleus
Axon
Brain
A signal from another axon would enter a different axon where?
Myelin Sheath
Dendrites
Synapse
Which way does sodium move in the axon?
(a)
Which way does potassium move?
(a)
What part of the neuron releases neurotransmitters?
Axon terminal
Dendrites
Cell body
Myelin sheath
What ion must enter the axon terminal before vesicles containing the neurotransmitters can make their way to the cell wall and release the neurotransmitter?
Calcium ions (Ca2+)
Sodium ions (Na+)
Potassium ions (K+)
Chloride ions (Cl-)
Touch involves sensing what?
Pressure
pain
temperature
tension
What is the domain sense for humans?
Vision
Taste
Smell
Balance
What is the function of chemoreceptors?
Detect changes in chemical concentrations
Regulate body temperature
Control muscle contractions
Transmit nerve impulses
In your nose, how do chemoreceptors detect chemicals?
By binding to odor molecules in the air
By detecting changes in air pressure
By sensing temperature changes in the nasal cavity
By attaching to them after the chemical has been dissolved
What must happen to chemicals before chemoreceptors in the mouth can detect it?
The chemicals must dissolve in saliva.
The chemicals must evaporate.
The chemicals must be broken down by enzymes.
The chemicals must bind to taste buds directly.
What parts of the ear are most important for hearing?
Cochlea and auditory nerve
Pinna and ear canal
Eustachian tube and tympanic membrane
Ossicles and vestibular system
Where do images focus?
On the retina
On the cornea
On the lens
On the optic nerve
What part of the eye is most sensitive to light?
Retina
Cornea
Lens
Pupil
What's the difference between RODS and CONES?
RODS are responsible for vision in low light conditions, while CONES are responsible for color vision and visual acuity in well-lit conditions.
RODS are responsible for color vision, while CONES are responsible for vision in low light conditions.
RODS are found only in the peripheral retina, while CONES are found only in the central retina.
RODS are responsible for peripheral vision, while CONES are responsible for depth perception.
What does the lens do?
Focuses light onto the retina
Produces images in the brain
Filters out harmful light
Detects colors and shapes
What are the chemical sense?
Smell and sight
Sight and touch
Taste and touch
Smell and taste
Why are nose hairs important?
Nose hairs help filter out dust, debris, and harmful particles from entering the respiratory system.
Nose hairs enhance the sense of smell.
Nose hairs help regulate body temperature.
Nose hairs provide structural support to the nostrils.
What two senses is the ear involved with?
Hearing and balance
Taste and smell
Touch and sight
Smell and touch
Which part of the ear are involved with hearing?
Cochlea
Pinna
Eustachian tube
Semicircular canals
What is the function of the outer ear?
To collect and direct sound waves into the ear canal
To maintain balance and equilibrium
To convert sound waves into electrical signals
To amplify sound waves
What are the two parts of the outer ear?
Pinna and cochlear
Pinna and eyes
Pinna and auditory canal
Auditory canal and eardrum
What is the other name for Pinna?
Auricle
Tympanic membrane
Cochlea
Eustachian tube
What is the purpose of the middle ear?
To relay information between the inner and outer ear
To filter out harmful sounds
To produce earwax
To maintain balance and equilibrium
What term is used to name the ear bones as a group?
Ossicles
Cochlea
Tympanic bones
Auditory bones
What is the purpose of the ear bones?
Amplify sound waves for the brain to process better
Amplify sound waves to make them stronger
Differentiate between the different vibrations
what does the fluid in the inner ear do?
Conducts sound vibrations that aid in responding to changes in the equilibrium
Relay station between the brain and the earbrum
forms earwax
none of these
What is the function of the inner ear?
Helps conduct sound vibrations
Sends the sounds to the brain
Turns physical vibrations into electrical impulses to travel to the brain
Amplify sound waves to make stronger for when they get to the eardrum
What is the vestibule?
A small entrance hall or passage between the outer door and the interior of a building
A part of the inner ear involved in balance
A chamber in the heart that receives blood
A cavity in the brain that contains cerebrospinal fluid
What do the semicircular canals of the ear do?
Help with balance and spatial orientation
Amplify sound waves
Convert sound waves into electrical signals
Protect the eardrum from damage
What do the hair cells do?
vibrate at even frequencies
Generate impulses to send to the brain
help stop bleeding in the ears
Vibrate at different frequencies
Blood cells are living
True
False
What does the organ of Corti do?
Sends AP through the Brain
Sends AP though the cochlear nerve to the auditory cortex of the brain
Sends AP through the brain to the cochlear nerve
