Morphology of Humans 2 Flashcards
Interoreceptors
Monitor internal environment
Externoreceptors
Monitor external environment
External ear
gathers sound towards middle ear
middle ear
conducts sound waves to inner ear
inner ear
transforms vibrational waves into electrical impulses
Stages of hearing (5)
1.) sound wave enters ear, 2.) conduction of sound waves to the inner ear, 3.) vibrational wave stimulate organ of corti hair cells, 4-5.) vibrational waves dissipate at the round window
three layers of eye
sclera, blood vessels, retina
sclera
whites of eye
retina (2)
photoreceptor and optic nerve
cornea (2)
clear part of eye, 80% focusing
pupil
opening of eye
iris
pigmented layer behind cornea
lens (2)
clear and flexible protein, 20% of focusing
Pupil dilated
lens thin
pupil constricted
lens thick
rods (2)
black and white vision, most common in peripheral field of vision
cones (2)
color vision, most common in central field of vision
leverage system parts (3)
resistance, fulcrum, applied energy
resistance
force that must be overcome for movement
fulcrum
joint between bones
applied energy
muscular force applied on leverage to overcome resistance
axial skeleton (4)
skull, vertebral column, sternum, ribs
appendicular skeleton (2)
bones that form joints connecting the bones to the axial skeleton and bones of each limb.
epiphysis (2)
ends of long bone the form joints with other bones, spongy bone
spongy bone (2)
located in epiphysis, blood cell formation in red marrow
Diaphysis (2)
shaft of long bones. has medullary cavity for fat storage in yellow marrow
periosteum (2)
connect tissue that surrounds bone tissue, attachment of tendons
osteon
microscopic unit of bone
osteoblasts
build bone
osteoclasts
breakdown bone