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masochist one who gains sexual pleasure from being abused, either physically or mentally, by one's partner.

molestation a sex act performed on an unwilling or helpless victim.

paraphilia any perversion or fetish.

pedophilia sexual relations with children.

peeping Tom one who spies on women, often through a bedroom window.

rape forced sex on an unwilling partner; sexual assault.

sadism gaining sexual pleasure from inflicting pain, either mental or physical, on one's partner.

sadist one who gains sexual pleasure from inflicting pain on others.

snuff film a filmed record of a victim's murder, pro­viding a form of deviant sexual pleasure.

urolagnia sexual pleasure from the drinking of urine.

zoophilia bestiality.

skeletal system

astragalus the anklebone that connects with the heel bone.

atlas the first vertebra of the neck.

axis the second vertebra (below atlas) of the neck.

calcaneus heel bone.

caluarium the top of the skull.

capitate the large center wrist bone.

carpal eight small bones of the wrist: greater mult­angular, lesser multangular, capitate, hamate, lunate, navicular, triquetrum, pisiform.

cartilage elastic or fibrous connective tissue that sometimes transforms into bone; gristle.

clavicle the curved shoulder or collarbone above the first rib.

coccyx the vestigial tailbone.

concha a small, scroll-shaped bone of the outer side of the nasal cavity.

coxa hipbone.

cranium the skull, consisting of the occipital bone, two parietal bones, two temporal bones, a sphenoid bone, and and ethmoid bone.

cuboid a small, cubelike bone in the foot.

cuneiform the small bones of the foot.

ethmoid the T-shaped nasal bone at the front of the skull.

femur the thighbone, the longest and heaviest bone in the body.

fibula the outer leg bone extending from the knee to the ankle.

frontal the flat bones forming the front of the skull and parts of the orbit and nose.

humerus the long arm bone between the shoulder and elbow.

hyoid the U-shaped bone in front of the neck above the larynx.

ilium the upper part of the hipbone. incus in the middle ear, the anvil. ischium part of the hipbone. lacrimal the smallest bone of the face. malar cheekbone.

malleus in the middle ear, the hammer. mandible the lower jawbone.

marrow the tissue inside certain bones that manu­facture new blood cells.

maxilla the upper jawbone.

metacarpal the five slender bones of the hand.

metatarsal the five bones of the foot.

nasal the bridge of the nose.

navicular the small, boat-shaped bones of the hands and feet.

occipital the lower back of the skull.

palatine one of two bones making up the hard pal­ate, nose, and orbit.

parietal the two bones making up the sides and roof of the skull.

patella kneecap.

pelvis the hipbones, sacrum, and coccyx collectively.

phalanges fingers and toes.

pubis the front lower part of the pelvis.

radius the long bone of the forearm, from the elbow to the wrist.

ribs 12 on each side.

sacrum the five fused vertebrae of the lower back, part of the pelvis.

scapula shoulder blade.

sesamoid the small bones embedded in some ten­dons, especially in the hands and feet.

skull see cranium.

sphenoid the front of the base of the skull and part of the nasal and orbital cavities.

stapes in the middle ear, the stirrup.

sternum the breastbone where the ribs and collar­bone are attached.

talus the astragalus.

temporal the sides of the base of the skull.

tibia the large leg bone extending from knee to ankle.

tympanic collectively, the three small bones of the middle ear, the incus, malleus, and stapes.

ulna the inner forearm bone, from the elbow to the wrist.

vertebrae the spinal column, consisting of 33 ver­tebrae.

vomer the bone forming the back of the nasal sep­tum.

zygoma cheekbone.

Bone Diseases, Disorders, and Breaks

Colles fracture the most common type of wrist fracture, involving the radius and ulna bones.

comminuted fracture a bone splintered into many pieces.

compound fracture a fracture accompanied by a flesh wound through which the bone may protrude.

countertraction used in traction to pull bones together and realign them after a break.

crepitation the sound of broken bones when they rub together. Also the cracking of joints.

fatigue fracture a fracture of the metatarsal shaft, usually caused by prolonged marching or walking. Also known as a march fracture.

Kirschner wires the wires threaded through broken bones to help pull them back together.

marble bone a disease in which bones become extremely dense. Also known as Albers-Schdnberg disease.

ossification the transformation of connective tissue or cartilage into bone.

osteoarthritis a disease characterized by a wasting away of bone and cartilage.

osteochondritis inflammation of bone.

osteoclasis intentionally rebreaking a bone in order to reset it in a more accurate alignment.

osteofibrosis degeneration of bone marrow.

osteogenic sarcoma a malignant bone tumor.

osteology the study of bones.

osteoporosis a condition frequently found in elderly women in which the bones become brittle and easily broken, due to a calcium deficiency.

pathologic fracture a fracture due to a disease pro­cess rather than an injury.

Pott's fracture the most common type of lower leg fracture, involving the tibia and fibula.

scoliosis curvature of the spine.

spur a small, projecting growth of bone.

traction the pulling together and alignment of bones by a system of ropes and pulleys.

Teeth

alveolus the socket of a tooth.

bicuspid premolar teeth, between the molars and canines.

bruxism gnashing or grinding the teeth, especially during sleep.

canine teeth the sharp, pointy front teeth. Also known as cuspids.

caries cavities.

cementum the bonelike tissue covering the roots of the teeth.

cusp the pointed part of a tooth. cuspid see canine teeth.

deciduous teeth temporary teeth; first teeth, or baby teeth. Also known as milk teeth.