Nervous System
What is the layer of fat on the axon terminal called?
Myelin Sheath
What is the function of the Killer T Cell?
To kill infected cells
A tendon connects...
a. bone to bone
b. muscle to bone
c. cushions bone joints
b. muscle to bone
What are the two photoreceptors in the eye and what do they detect.
Rods - detect light
Cones - detect color
What are the two branches of the nervous system.
Autonomic and Somatic Nervous systems
Why are memory B cells useful?
They help the body remeber the disease/virus the next time the body is infected.
This cushions the joints between bones
Cartilage
What is another name for the eardrum?
Tympanum
What is the difference between sympathetic and parasympathetic responses?
Sympathetic is fight or flight response, and controlls the quick automatic responses. Parasymapthetic slows down responses and slows many high energy functions.
What is the difference between cell-mediated and humoral responses?
Cell mediated responses occur in cells, and have killer T cells, while humoral is in bodily fluids and have B cells.
What type of muscle are you tearing if you tear your achilles heel?
Tendon
What is the function of the pupil?
To control how much light enters the eye.
Motor Neuron - controlls movement/muscle contractions
Sensory Neuron - collects sensory information and sends it to spinal cord
Interneuron - connects the sensory and motor neurons
What is an allergy?
An inflammatory response to a harmless antigen.
Why is it a problem that the cardiac muscles cannot repair themselves?
What is used as a balance tool?
The semicircular canal.
Feedback inhibition is when an enzyme catalyzes a reaction which counteracts another reaction. This helps to maintain homeostasis. An example of this is a thermostat.
What is auto-immune disease?
A disease where the body cannot recognize it's own tissue so it attacks itself.
Describe the 3 types of muscles.
a. function
b. location
3. shape
Skeletal: a. moves bones and allows your skeleton to move. b. attached to bones. c. striped
Cardiac: a. pumps blood. b. in walls of heart. c. striped with branches
Smooth: a. protection of organs, passage of bloodflow. b. walls of organs. c. tapered ends
What causes a blindspot?
A blindspot is caused when your optic nerve blocks the image from being reflected on to your retina