Re: Anatomy & Physiology B/C
Posted: January 27th, 2015, 4:03 pm
Describe each of the layers present in thick skin.
Stratum: Basale, Spinosum, Granulosum, Lucidum (only present in thick skin), and Corneum
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Re: Anatomy & Physiology B/C
Posted: January 28th, 2015, 7:11 pm
Re: Anatomy & Physiology B/C
Posted: January 28th, 2015, 7:24 pm
Keep going! Notice I said "describe" rather than "list" ;)GoofyFoofer wrote:Stratum: Basale, Spinosum, Granulosum, Lucidum (only present in thick skin), and Corneum
Re: Anatomy & Physiology B/C
Posted: January 28th, 2015, 8:02 pm
Oh, sorry.bernard wrote:Keep going! Notice I said "describe" rather than "list"GoofyFoofer wrote:Stratum: Basale, Spinosum, Granulosum, Lucidum (only present in thick skin), and Corneum
stratum basale: typically 1-3 cells thick, layer where skin cells grow and divide; also contains melanocytes, Langerhans cells, and Merkel cells stratum spinosum: composed of layers of polygonal cells that have a spiny appearance (hence its name) stratum granulosum: thin layer of skin where cells lose their their nuclei and gain hydrophobic qualities stratum lucidum: thin, clear, layer of dead cells that have flattened, only present in thick skin stratum corneum: 15-20 layers of dead cells w/out nuclei nor organelles, serves to protect underlying tissues from chemicals, dehydration, infection, etc.
Re: Anatomy & Physiology B/C
Posted: January 28th, 2015, 8:14 pm
Very good; you had all the key things I was looking for! Your turn!GoofyFoofer wrote:Oh, sorry.bernard wrote:Keep going! Notice I said "describe" rather than "list" ;)GoofyFoofer wrote:Stratum: Basale, Spinosum, Granulosum, Lucidum (only present in thick skin), and Corneumstratum basale: typically 1-3 cells thick, layer where skin cells grow and divide; also contains melanocytes, Langerhans cells, and Merkel cells stratum spinosum: composed of layers of polygonal cells that have a spiny appearance (hence its name) stratum granulosum: thin layer of skin where cells lose their their nuclei and gain hydrophobic qualities stratum lucidum: thin, clear, layer of dead cells that have flattened, only present in thick skin stratum corneum: 15-20 layers of dead cells w/out nuclei nor organelles, serves to protect underlying tissues from chemicals, dehydration, infection, etc.
Re: Anatomy & Physiology B/C
Posted: January 28th, 2015, 10:03 pm
Alright.
Describe the path a signal takes through the electrical system of the heart.
Describe the path a signal takes through the electrical system of the heart.
Re: Anatomy & Physiology B/C
Posted: January 29th, 2015, 3:30 pm
The signal travels as follows: SA Node-->AV Node-->AV Bundle(Bundle of His)--> Left and Right Bundle Branches-->Purkinje Fibers
Re: Anatomy & Physiology B/C
Posted: January 29th, 2015, 8:42 pm
Correct, Eggo!
Your turn!
Your turn!
Re: Anatomy & Physiology B/C
Posted: February 13th, 2015, 10:30 pm
When an individual is exercising after eating a meal, what role will his pre-capillary sphincters play in giving him cramps?
Re: Anatomy & Physiology B/C
Posted: February 17th, 2015, 9:26 am
Eggo wrote:When an individual is exercising after eating a meal, what role will his pre-capillary sphincters play in giving him cramps?
Pre-cappillary sphincters are bands of smooth muscle that can control the blood flow to a certain area. When one exercises after eating a meal, blood flow to the digestive system decreases to allow more blood flow to the muscles under stress therefore causing cramps in the gut.