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lab practical 1
purr
| Term | Definition |
|---|---|
| condyle | rounded articular like projection |
| crest | narrow ridge of bone |
| epicondyle | raised area on or above condyle |
| facet | smooth nearly flat articular surface |
| fissure | narrow slitlike opening |
| foramen | round or oval opening through bone |
| fossa | shallow depression |
| head | structure supported on neck |
| meatus | air filled cavity |
| process | bony projection |
| ramus | armlike projection |
| sinus | canal like projection |
| spine | sharp slender process |
| trochanter | large irregularly shaped projection |
| tubercle | small rounded projection |
| tuberosity | large rounded projection |
| diaphysis | long bone shaft, compact bone |
| periosteum | around bone, holds them in place, blood vessels pass through them |
| perforating fibers | collagen fibers in periosteum that penetrate into the bone |
| osteoprogenitor cells | found in osteogenic, inner layer of periosteum |
| epiphysis | end of long bone with one thin layer of compact bone enclosing spongy bone |
| articular cartilage | made of hyaline cartilage, covers epiphysis in place of periosteum, helps to minimize friction |
| epiphyseal plate | thin area of hyaline cartilage that provides for longitudinal growth of bone during youth |
| epiphyseal lines | covers up bone that has stopped growing |
| medullary cavity | storage region for adipose tissue, yellow bone marrow in infants |
| red bone marrow | confined to interior of epiphyses and helps produce blood cells in adults |
| endosteum | lines shaft |
| hyaline cartilage | support external nose |
| elastic cartilage | external ear |
| fibrocartilage | menisci |
| skull | axial |
| auditory ossicles | axial |
| hyoid bone | axial |
| vertebral column | axial |
| bony thorax (ribs, sternum) | axial |
| sacrum | axial |
| coccyx | axial |
| pectoral girdle (scapula, clavicle) | appendicular |
| upper extremities (humerus, radius, ulna, carpal, metacarpals, phalanges) | appendicular |
| pelvic girdle ( 2 coxal bones) | appendicular |
| lower extremities (femur, tibia, fibula, patella, tarsal, metatarsals, phalanges) | appendicular |
| osteocyte | mature cells found in lacunae |
| lacunae | chambers arranged in circles |
| central canal | runs parallel to long axis of bone and carries blood vessels, nerves, and lymphatic vessels through bony matrix |
| concentric lamellae | arranges lacunae around central canal |
| perforating fibers | embedded into compact bone; holds vessels in space |
| perforating canal | horizontally connects canals & moves stuff around |
| osteon | central canal and concentric lamellae surrounding it |
| canaliculi | tiny canals radiating outward from central canal to lacunae of lamella forming dense transportation network connecting living cells to nutrient supply |
| circumferential lamellae | goes around entirety of bone |
| dendritic cells | ingest foreign substances and help activate the immune response |
| tactile epitheial cells | form sensitive touch receptors located at epidermal-dermal junction |
| tactile corpuscles | touch receptors found in hairless skin |
| lamellar corpuscles | pressure receptors |
| root hair plexus | stimulated when hair bends |
| nail plate | visible attached portion |
| free edge | portion that grows away from the body; one you cut off |
| nail root | embedded in skin and adheres to epitheial nail bed |
| lateral nail fold | on the side and helps to protect |
| eponychium | projection of thick proximal nail fold (cuticle) |
| nail bed | extension of stratum basale beneath nail |
| nail matrix | contains epidermal cells responsible for nail growth |
| lunule | thicker region of nail appearing like a opaque white crescent moon |
| proximal nail fold | bottom of nail and where plate emerges from |
| hyponchium | skin just under free edge of nail |
| hair shaft | part you see |
| hair root | beneath surface and embedded in follicle |
| hair follicle | where hair originates |
| medulla | center of kertanizied cells |
| cortex | majority and syrrounds medulla, determines hair color |
| protective cuicle | helps to surround medulla |
| hair papilla | provides nutrient to nourishing hair |
| hair matrix | directly above papilla, epitheial cells actively dividing |
| arrector pilli muscle | makes hair stand up |
| osseus tissue | located in bones, provides levers for muscles, stores calcium, supports and protects bones |
| blood | located in blood vessels, transportation |
| nervous tissue | located in nerves, brain, spinal cord, helps send electrical signals to glands and helps to support neurons |
| skeletal muscle | located in skeletal muscles attached directly to skin, voluntary movement |
| cardiac muslce | located in heart, contracts and propels blood, involuntary |
| smooth muscle | located in hollow organs, propels substances or babies, involuntary |
| blackheads | dried sebum, bacteria, and melanin |
| acne | active infection of sebacous glands |
Created by:
sarina05
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