Human Tissue Types and Functions

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What type of neuron carries nerve impulses away from the central nervous system to an effector, muscle fiber, or gland?

Sensory Neuron

Interneuron

Motor Neuron (correct)

Mechanoreceptor

What type of channel opens in response to physical distortion of the membrane?

Ligand-gated Na+ channel

Ion channel

Voltage-gated channel

Mechanically regulated channel (correct)

What is the space between the presynaptic and postsynaptic neuron called?

Postsynaptic terminal

Neurotransmitter receptor

Synaptic cleft (correct)

Presynaptic terminal

What type of neuron carries nerve impulses from a sensory receptor to the central nervous system?

Sensory Neuron Signup and view all the answers

What type of channel opens and closes in response to voltage changes on the membrane?

Voltage-gated channel Signup and view all the answers

What is the term for the junction between two nerve fibers?

Synapse Signup and view all the answers

What is the main function of muscular tissue?

To facilitate movement Signup and view all the answers

What type of channel opens and closes in response to the binding of a chemical neurotransmitter?

Ligand-gated Na+ channel Signup and view all the answers

What is the term for the neuron that brings an impulse to the synapse?

Presynaptic neuron Signup and view all the answers

Where can stratified columnar epithelium be found?

In the urethra, mammary ducts, and epididymus Signup and view all the answers

What is the function of simple cuboidal epithelium?

To absorb and secrete substances Signup and view all the answers

Where can pseudostratified columnar epithelium be found?

In the respiratory tract (Trachea) Signup and view all the answers

What is the characteristic of transitional epithelium?

It changes shape Signup and view all the answers

What is the main function of connective tissue?

To bind structures together and provide support Signup and view all the answers

Where can simple squamous epithelium be found?

In the air sacs of lungs and line blood capillaries Signup and view all the answers

What is the function of stratified squamous epithelium?

To protect underlying areas Signup and view all the answers

What is the function of eccrine sweat glands?

To regulate body temperature Signup and view all the answers

Where are apocrine sweat glands typically found?

In the arm pits and groin areas Signup and view all the answers

What is the function of ceruminous glands?

To produce wax Signup and view all the answers

What is the hypodermis?

A layer of loose connective tissue beneath the dermis and epidermis Signup and view all the answers

What are the major functions of the lymphatic system?

To produce, transport, and store cells that fight infection Signup and view all the answers

What is similar to the circulatory system?

The lymphatic system Signup and view all the answers

What is necessary for the flow of fluid in the lymphatic vessels?

Skeletal muscle contraction Signup and view all the answers

How many lymphatic organs are there?

5 Signup and view all the answers

What percentage of oxygen is carried bound to hemoglobin?

98% Signup and view all the answers

What is the name of the device used to measure air volume exchange during breathing?

Spirometer Signup and view all the answers

What is the total lung capacity?

6000ml Signup and view all the answers

What percentage of carbon dioxide is dissolved in the plasma?

7% Signup and view all the answers

What is the process by which carbonic acid is formed?

CO2 binds with H2O = H2CO3 = HCO3 and H Signup and view all the answers

What is the amount of air that is always in the lungs unless the lungs are damaged?

1200ml Signup and view all the answers

What is the total lung capacity minus the residual volume?

4800ml Signup and view all the answers

What is the term for the amount of air moving in and out of the lungs during normal breathing?

Tidal volume Signup and view all the answers

What is the primary function of the liver in the digestion process?

Produces bile for fat digestion Signup and view all the answers

What is the role of the hepatocyte in the liver?

To store iron and fat-soluble vitamins Signup and view all the answers

What is the primary function of the ascending colon?

To run up the right side of the abdominal cavity Signup and view all the answers

What is the role of the vermiform appendix in the large intestine?

To produce vitamin K Signup and view all the answers

What is the composition of feces?

¾ water and ¼ solids Signup and view all the answers

What is the function of E. coli in the large intestine?

To produce vitamin K and break down waste Signup and view all the answers

What is the role of the rectum in the large intestine?

To store feces temporarily and open into the anus Signup and view all the answers

What is the function of the anus in the digestive system?

To control defecation through sphincter muscles Signup and view all the answers