Tissues of the body

Question 1

Skeletal muscle

Answer 1

voluntary control, striated

Question 2

Cardiac muscle

Answer 2

Involuntary control, striated

Question 3

Smooth muscle

Answer 3

Walls of blood vessels, eyes; involuntary control, non-striated/smooth

Question 4

Common histological stain

Answer 4

haematoxylin - blue/purple - stains nucleus

eosin - pink - stains cytoplasm

Question 5

Stratified epithelium vs simple

Answer 5

Stratified usually occurs with the function of protection (either from mechanical/abrasion or infection)

Simple usually occurs with the function of absorption, transport etc.

Question 6

Types of connective tissue

Answer 6

Loose - many cells, not many fibres - e.g. lamina propria (ALWAYS found under epithelium)
Dense - cells and lots of fibres, arranged either parallel (regular e.g. tendon) or randomly (irregular e.g. dermis)
Specialised - e.g. bone and cartilage

Question 7

Myofibrils

Answer 7

found in the cytoplasm of muscle fibres
composed of myofilaments
myofilamens = actin and myosin

Question 8

general arrangement of tissues - 4 layers

Answer 8

1. skin (epidermis)
2. subcutaneous (loose connective tissue, with adipose for insulation and shock absorption)
3. Deep fascia (dense, inelastic connective tissue, creates muscle compartments, forms restraining bands for tendons)
4. area deep to fascia (bones, muscles)

Question 9

fibrous septum

Answer 9

loose connective tissue which connects skin to deep fascia (runs through subcutaneous)

there are fewer on back of hand (allows skin to stretch)