lab 10- muscle and nervous tissue(test 1)

Question 1

skeletal muscles

Answer 1

• long, threadlike cells, striated, many nuclei near plasma membrane
• function: voluntary movements of skeletal parts, facial expressions
• location: muscles usually attached to bones
• appearance: unbranched and relatively parallel

Question 2

smooth muscle

Answer 2

• shorter spindle-shaped cells, single central nucleus
• function: involuntary movements of internal organs
• locations: walls of hollow internal organs

Question 3

cardiac muscle

Answer 3

• branched cells, striated, usually single nucleus
• function: heart contractions to pump blood, involuntary
• location: heart walls
• appearance: branched and connected in complex networks