Nervous System
The smallest part of a nerve cell is called the...
neuron
How many senses are there? Name them
5- sight, hearing, touch, taste, and smell
The musculoskeletal system is made up of which two things?
Muscles and the skeleton
In your own words, describe what a reflex is, and give an example.
A reflex is a very quick, automatic response to a stimulus.
If you touch a hot pan, your reflexes pull your hand away from the pan.
Name three parts of the eye.
Answers can include: the retina, iris, eyelid, cornea, lens, and optic nerve
Name the two different parts of a neuron
Axon and dendrite
Each of the 5 sense organs react to different types of.... (starts with an s)
stimulus
True or false? When one muscle contracts, the other relaxes.
True!
Name at least three involuntary actions
Breathing, heart rate, blinking, digestion, sleeping
What two organs make up the central nervous system?
The brain and spinal cord
What organ decodes information from the nervous system and decides whether a response is needed?
The brain
Specialized cells that collect information are called....
receptors
When our central nervous system receives a ____________, it tells our body how to ___________ by sending a message to a specific part.
Stimulus, respond
Name the three types of muscle.
Skeletal, smooth, and cardiac
What is an impulse?
An impulse is an electrical signal sent to the brain that is triggered by environmental stimuli. (Answers will vary)
Name the three types of neurons and describe what they're responsible for
Sensory neuron, interneuron, and motor neurons
(Descriptions will vary)
True or false? The olfactory nerve is part of the ear canal.
False! The olfactory nerve is part of the nose
Without looking at your book, name the three types of joints.
Fixed, semi-flexible, and flexible
Involuntary actions are carried out by.....
smooth and cardiac muscles
Name the 4 muscles in the front of the body
Face muscles. pectoral, biceps, abdominal, quadriceps
Name the three different parts of the brain and describe what they are responsible for
Cerebellum, cerebrum, and brain stem
(descriptions will vary)
Without looking at your book, name ALL 6 parts of the ear system
Outer ear, auditory canal, auditory nerve, eardrum, and middle ear
Without looking at your book, name at least 6 different types of bones in the skeleton.
Answers include: scapula, sternum, humerus, spine, pelvis, femur, fibula, tibia, patella, ulna, radius, ribs, clavicle, skull
Describe what a reflex arch is.
A reflex arch happens when a sensory neuron carries a message from a receptor to the spinal cord. A motor neuron carries the response message back to an effector. The brain is not involved.
Name all 6 of the muscles in our back.
Deltoid, dorsal, triceps, gluteus, biceps femoris, gastrocnemius