Flashcards in Forelimb and Vertebral Column Deck (243)
What is a locomotor system?
Musculoskeletal system that allows wide range of animal movement
What are the adaptions to the locomotor system of cursors?
Reduced pectoral skeleton- more cranial movement
Elongation at proximal end of limb
Elongation at distal end of limb
What are the 4 types of bones?
Long, Short, Flat and Sesamoid
How can skeletal muscle be attached?
Via tendons, via aponeurosis, cervico-thoraco-lumbar fascia, superficial fascia
What is the difference between and intrinsic and extrinsic muscle?
Intricnisic- origin and insertion with appendicular skeleton
Extrinsic- origin on axial skeleton
What is the term used for a folding limb?
What is the term used for a stretching limb?
What is in the axial skeleton?
Bones of vertebral column, skull and ribcage
What bones make up the appendicular skeleton?
Fore and hindlimb bones
What is a diaphysis of a bone?
shaft of a bone
What is the epiphysis of a bone?
Where is the weakest point of adult bones?
What is the bottom of a dogs forelimb and hindlimb called?
How are muscles attached to bones?
Describe the action of a muscle?
Belly contracts and shortens
Points of attachments move closer
Pivot at joint
What is the difference between intrinsic and extrinsic muscles of the fore limb?
Intrinsic- origin and insertion within appendicular skeleton
Extrinsic- origin on abaxial skeleton
What bones make up the forelimb?
What are the different regions of a dogs forelimb?
What type of bone is the scapula?
Describe all the features of the scapula?
Caudal and cranial angle
Caudal and cranial border
Supraspinous fossa- cranial
Infraspinous fossa- caudal
Scapular notch- cranial ventral
Acromion process- bottom of spine
Supraglenoid tubercule- cranial ventral
Glenoid cavity- notch at distal end
Serrated face- back of bone
Subscapular fossa- back
Infraglenoid tubercle- caudal ventral
What is the difference between cat and dogs scapulas?
More rounded cranial angle in cats
Cats have Suprahamate process- like extension of acromion process
Cats have clavicle
What are the centres of ossification in a scapula?
What are the extrinsic muscles of the forelimb?
What is the function of the brachiocephalic muscle?
What is the origin and insertion of the brachiocephalic muscle?
Origin- cervico-thoracic fascia
What is the insertion of the omotransversarius?
Origin- transverse wing of the atlas
Insertion- acromion process
What is the function of the omotransvarius?
Protracts the limb
What is the function of the lattisimus dorsi?
What is the origin and insertion of the lattimus dorsi?
Origin- thoracolumbar fascia