What is the function of the following:
Pinna – the flap of cartilage which has the sole purpose of directing sound waves
tympanic membrane – the ear drum that starts the vibrating
ossicles – they vibrate to cause movement within the fluid of the cochlea
cochlea – to stimulate nerve impulses to be sent to the brain by the auditory nerve.
semicircular canals- deals with balance, the equilibrium of the body
What three bones make up the ossicles? Malleus, incus, stapes.
What is the function of hairs in the ear? To move or sway as the fluid in the cochlea move
Wednesday, April 23, 2008
what is CNS and PNS
What does CNS and PNS stand for? CNS stands for the Central Nervous System, and PNS stands for Peripheral Nervous System.
What are the parts of the CNS? It consists of the spinal cord, and the brain. It controls the thinking the memory and the behavior.
Describe something that you do on a regular basis that your PNS controls. It sends messages and nerve sensory to the rest of my body.
What are the two divisions of the autonomic nervous system and what does each control? It is divided into the Sympathetic and the Parasympathetic Nervous system. The sympathetic branch controls the body in time of stress and worry, fear, and emergency. The parasympathetic branch brings the body back to a normal state and allows the rest and relaxation to occur.
What are the three main types of neurons? What is the function of each? Sensory Neuron, Motor Neuron, Interneuron. Sensory neurons help to sent the message to the motor neuron and the motor neuron helps to send the sense to the interneuron and that’s where it is then sent to the brain.
What is the function of the axon of a nerve cell? The dendrite? The axon is the sending end of the neuron, and the dendrite is the receiving end of the neuron.
What is a synapse? It is the sparking or jumping of neural impulses from one neuron to another
Sketch a neuron and label the axon and the dendrite.
What are the parts of the CNS? It consists of the spinal cord, and the brain. It controls the thinking the memory and the behavior.
Describe something that you do on a regular basis that your PNS controls. It sends messages and nerve sensory to the rest of my body.
What are the two divisions of the autonomic nervous system and what does each control? It is divided into the Sympathetic and the Parasympathetic Nervous system. The sympathetic branch controls the body in time of stress and worry, fear, and emergency. The parasympathetic branch brings the body back to a normal state and allows the rest and relaxation to occur.
What are the three main types of neurons? What is the function of each? Sensory Neuron, Motor Neuron, Interneuron. Sensory neurons help to sent the message to the motor neuron and the motor neuron helps to send the sense to the interneuron and that’s where it is then sent to the brain.
What is the function of the axon of a nerve cell? The dendrite? The axon is the sending end of the neuron, and the dendrite is the receiving end of the neuron.
What is a synapse? It is the sparking or jumping of neural impulses from one neuron to another
Sketch a neuron and label the axon and the dendrite.
Subscribe to:
Posts (Atom)
