muscles and blood vessels

Question 1

what are the three muscles types

Answer 1

• cardiac
• smooth
• skeletal

Question 2

what muscles are voluntary and involuntary

Answer 2

• smooth and cardiac involuntary
• skeletal voluntary

Question 3

what mussels are striated

Answer 3

• cardiac
• skeletal

Question 4

what are the layers of heart from inner to outer

Answer 4

• endocardium
• myocardium
• epicardium
• pericardium

Question 5

what are the features of cardiac muscle

Answer 5

• desmosomes
• opening of transverse tubule
• intercalated discs
• sarcolema
• transverse tubule
• sarcoplasmic reticulum linked to transverse tubule
• sarcomere

Question 6

where is smooth muscle found

Answer 6

• viscera
• blood vessels

Question 7

smooth muscle features

Answer 7

• made of small cells 25 um in diameter and 300 um lung
  -spindle shaped cell with central nucleus
• not striated
• joined by gap junctions
• innervated by autonomic nerves
• no sarcomeres
• no t tubules

Question 8

what are the three walls of blood vessel

Answer 8

• tunica intima (endothelium, basement membrane, internal elastic lamina)
• tunica media (smooth muscle, external elastic lamina)
• tunica adventitia (connective tissue- colagen)

Question 9

what are elastic arteries

Answer 9

• also known as conduction arteries
• aorta
• transport large volumme of blood away from heart
• consists of internal elastic lamina and external elastic lamina

Question 10

muscular arteries what are they

Answer 10

• most common
• no internal or external elastic lamina
• distribute blood to skeletal muscles and viscera
• distribution arteries are another name for them

Question 11

continuous capillary

Answer 11

• majority of organs
• no gaps

Question 12

fenestrated capillary

Answer 12

• kidneys
• endocrine glands
• liver (gap capillaries)
  -small intestine