Module 1 Introduction Flashcards
taking the whole limb forward
Protraction
taking the whole limb backward
Retraction
the movement of one bone upon another in such a way that the angle formed at their joint is increased
Extension
the act of turning the palm backward
Pronation
This is the normal position of the manus in quadripeds
Pronation
the act of turning the palm forward
supination
the movement of a part away from the median plane
abduction
the movement of a part towards the median
adduction
bones that develop within some soft organs
Splanchnic skeleton
types of bone that is characterized by a shaft or diaphysis, formed from a thick outer layer of compact bone
long bone
what types of bone form the bsis of the limbs
long bones
this type of bone can have different forms such as cylindrical, cubic or round
short bones
this bone consist of two layers of compact bone (tabulae) surrounding either spongy bone or air.
Flat and wide bones
These bones have formed through the subsequent resorption of bone substance and lined with mucosa
flat and wide bones
this type of bone is found close to the joints or embedded in tendon
sesamoid bones (ossa sesamoidea)
less uniform in shape and they lie in the midline and are unpaired bones
irregular bones
these bones contains air filled spaces known as sinuses which have the effect of reducing the weight of the bone
Pneumatic Bones
this is the bone that develops in a soft organ and is unattached to the rest of the skeleton
Splanchnic bone
what are the three sources of afferent blood to long bone
Nutrient
Metaphyseal
Periosteal
two types of ossification
intramembranous and endochondrial ossification
the cells responsible for laying down new bone
osteoblast
cells that destroy or remodel bone is called
osteoclast
This is the process by which the flat bones of the skull are formed
Intramembranous Ossification
This type of ossification involves the replacement of a hyaline cartilage model
Endochondrial ossification
Three types of Fibrous Joints
Sutures
Gomphosis
Syndesmosis
type of fibrous joints that are largely confined to flat bones of the skull
Sutures
type of fibrous joint formed between a teeth roots in the dental alveoli and its socket by dense connective tissue
Gomphosis
is fibrous joint with much intervening connective tissue
Syndesmosis
Two types of cartilaginous joints
Synchondrosis
Symphysis
These are mainly transitory joints found in growing bone
Synchondrosis
This joint is found in symphyses and are important joints between vertebral bodies and sternebrae
Symphysis
This joint allows the greatest degree of movement
Synovial joints
this synoviocytes are responsible for phagocytosis
Type A synoviocytes
this type of synoviocytes produce and secrete proteins
Type B synoviocytes
what is the primary purpose of synovial joint
lubricate the joint
Synovial joint is composed of
hyaluronic acid, sugar, electrocytes and enzymes
occurs due to increased production of synovia
Hydrarthrosis
The articular cartilage is divided into
superficial zone
intermediate zone
radial zone
calcified zone
this zone is comprised of tightly woven collagen fibers
superficial zone
this zone is structurally homogenous
intermediate zone
This structure guarantees a strong attachment of joint cartilage to bone
calcified zone
This plate supports dynamic functions of the joint, acts as a cushion protecting the cartilage from axial forces and promotes the metabolic supply of the deeper layers of cartilage
subchondral bone plate
is the ability of muscle fibres to sustain contraction over long periods and is dependent on energy obtained from aerobic metabolism
Endurance
high endurance fibres are called
red fibres
muscles that are contained within the skin and are associated directly with hair follicles
arrector pilli muscles
these muscles erect the hairs against the cold and in behavioristic displays
arretor pilli muscles
Three types of hair
Lead hairs
Guard hairs
Wool hairs
This type of hair is long, stiff and slightly curved
lead Hair or main
are shorter than lead hair, arched near the tip and thickened
guard hair
shortest type of hair
wool hair
this type of hair predominates in puppies
wool haair
special forms of hair in the vicinity of the opening of the mouth
sinus or tactile hairs
the part of the coat in which the hairs have a uniform direction is called
flumina pilorumm
active growth phase in hair
anagen
the quietest stage and shortest period phase in hair
catagen
is is the resting phase
telogen