Bio 2 Ch 36 Vocab

periosteum

tough later of connective tissue surrounding a bone

Haversian canal

one of a network of tubes running through compact bone that contains blood vessels and nerves

bone marrow

soft tissue inside the cavities within bones

cartilage

strong connective tissue that supports the body and is softer and more flexible than bone

ossification

process of bone formation during which cartilage is replaced by bone

joint

place where one bone attaches to another

ligament

strip of tough connective tissue that holds bones together at a joint

myosin

protein that makes up the thick filaments in striations in skeletal muscle cells

actin

protein that mainly makes up the thin filaments in striations in skeletal muscles

nueromuscular junction

point of contact between a motor neuron and a skeletal muscle cell

acetylcholine

neurotransmitter that diffuses across a synapse and produces an impulse in the cell

tendon

tough connective tissue that joins skeletal muscles to bones

epidermis

outer layer of the skin

keratin

tough fibrous protein found in skin

melanin

dark brown pigment found in skin

dermis

inner layer of the skin

hair follicle

tubelike pocket of epidermal cells that extends into the dermis, cells at the base of hair follicles produce hair