Terminology Flashcards
Axial Skeleton
Skull
Vertebral Column
Sternum
Ribs
Appendicular Skeleton
Fore & Hind Limbs
Heterotrophic Skeleton
“Splanchnic”
Os penis/baculum
Function of the Skeleton
Support Movement Protection Storage Haematopoesis
Axial skeleton function
support & propulsion
Appendicular skeleton function
propulsion, some support
Cranial
toward head
Caudal
toward tail
Proximal
near main mass of structure
the attached end of a limb
Ventral
toward ventrum (belly)
Dorsal
toward dorm (back) cranial of limbs
Distal
away from main mass of structure
free end
digestive near anal
Palmar
caudal aspect of forelimb below carpus (opposite dorsal)
Plantar
caudal aspect of hindlimb below tarsus (opposite dorsal)
Medial
toward median plane
Lateral
away from median plane
Axis
central line of body
in line with 2nd cervical vertebra
Axial
toward plane of axis
Abaxial
away from plane of axis
Rostral
(head) toward nose
Caudal (head)
(head) away from nose
Mesial
(teeth) toward central line of front of mouth (toward rostral midline)
Distal (head)
(teeth) away from the central line of the front of mouth (away from rostral midline)
Buccal
(oral cavity) toward the cheek
Lingual
(oral cavity) toward the tongue
Palatal
(oral cavity) toward hard palate
Oral
toward the mouth
Aboral
away from the mouth
Joint/articulation definition
a junction between two or more bones
Groups/types of joints
Fibrous
Cartilaginous
Synovial
Fibro-cartilaginous
Fibrous joint
dense connective tissue
little movement
Cartilaginous joint
cartilage
some movement
Synovial joint
joint cavity with synovial fluid
a lot of movement
Menisci
fibrocartilage pad (cushion) within synovial joint to improve connection between bones assists movement
Epiphysis
end of the bone
Diaphysis
shaft of the bone
Growth Plates
look like a joint/fracture on rads
endochondral ossification occurs here (cartilage->bone)
Types of Synovial joint
*ball & socket
*hinge
plane
*condylar
pivot
ellipsoidal
saddle
Example of a ball & socket joint
hip
Example of a hinge joint
elbow
Example of a condylar joint
stifle
Protraction
cranial movement of limb
Retraction
caudal movement of limb
Flexion
bend limb/decrease angle of joint
Extension
straighten limb/increase angle of joint
Abduction
move limb away from body
Adduction
move limb toward body
Circumduction
move limb in circular motion
Rotation
move limb around long axis
Supination
lateral rotation so palmar/plantar is medial
Pronation
medial rotation so palmar/plantar is down
Flexure angle
orientation on joint where flexion occurs
Origin
proximal/dorsal/cranial/central attachment point of a muscle
Insertion
distal/ventral/caudal/peripheral attachment point of a muscle
Agonist
induces a certain action
Antagonist
induces an opposite movement than an agonist