40 Questions
What type of neuron carries nerve impulses away from the central nervous system to an effector, muscle fiber, or gland?
Motor Neuron
What type of channel opens in response to physical distortion of the membrane?
Mechanically regulated channel
What is the space between the presynaptic and postsynaptic neuron called?
Synaptic cleft
What type of neuron carries nerve impulses from a sensory receptor to the central nervous system?
Sensory Neuron
What type of channel opens and closes in response to voltage changes on the membrane?
Voltage-gated channel
What is the term for the junction between two nerve fibers?
Synapse
What is the main function of muscular tissue?
To facilitate movement
What type of channel opens and closes in response to the binding of a chemical neurotransmitter?
Ligand-gated Na+ channel
What is the term for the neuron that brings an impulse to the synapse?
Presynaptic neuron
Where can stratified columnar epithelium be found?
In the urethra, mammary ducts, and epididymus
What is the function of simple cuboidal epithelium?
To absorb and secrete substances
Where can pseudostratified columnar epithelium be found?
In the respiratory tract (Trachea)
What is the characteristic of transitional epithelium?
It changes shape
What is the main function of connective tissue?
To bind structures together and provide support
Where can simple squamous epithelium be found?
In the air sacs of lungs and line blood capillaries
What is the function of stratified squamous epithelium?
To protect underlying areas
What is the function of eccrine sweat glands?
To regulate body temperature
Where are apocrine sweat glands typically found?
In the arm pits and groin areas
What is the function of ceruminous glands?
To produce wax
What is the hypodermis?
A layer of loose connective tissue beneath the dermis and epidermis
What are the major functions of the lymphatic system?
To produce, transport, and store cells that fight infection
What is similar to the circulatory system?
The lymphatic system
What is necessary for the flow of fluid in the lymphatic vessels?
Skeletal muscle contraction
How many lymphatic organs are there?
5
What percentage of oxygen is carried bound to hemoglobin?
98%
What is the name of the device used to measure air volume exchange during breathing?
Spirometer
What is the total lung capacity?
6000ml
What percentage of carbon dioxide is dissolved in the plasma?
7%
What is the process by which carbonic acid is formed?
CO2 binds with H2O = H2CO3 = HCO3 and H
What is the amount of air that is always in the lungs unless the lungs are damaged?
1200ml
What is the total lung capacity minus the residual volume?
4800ml
What is the term for the amount of air moving in and out of the lungs during normal breathing?
Tidal volume
What is the primary function of the liver in the digestion process?
Produces bile for fat digestion
What is the role of the hepatocyte in the liver?
To store iron and fat-soluble vitamins
What is the primary function of the ascending colon?
To run up the right side of the abdominal cavity
What is the role of the vermiform appendix in the large intestine?
To produce vitamin K
What is the composition of feces?
¾ water and ¼ solids
What is the function of E. coli in the large intestine?
To produce vitamin K and break down waste
What is the role of the rectum in the large intestine?
To store feces temporarily and open into the anus
What is the function of the anus in the digestive system?
To control defecation through sphincter muscles
Test your knowledge of the four main tissue types in the human body: epithelial, connective, muscular, and nervous tissue. Learn about their functions and characteristics in this quiz.
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