Axial Skeleton: Skull Flashcards
Lines that separate bones of the skull
Suture lines
2 major parts of skull
Cranium (surrounds cranial cavity) and facial bones
Caudal bone of skull that articulates w atlas (C1)
Occipital bone
Opening in occipital that allows spinal cord to leave brain
Foramen magnum (aka magna)
Rostral to the occipital bone
Parietal bone
Rostral to parietal bone
Frontal bone
Eye socket
Orbit
What bone the horns or antlers grow from
Frontal
Bones that make up sides of head
Temporal
Bulb like cavity that contains the middle ear
Tympanic or temporal bulla
Bone contains inner ear
Petrous temporal bone
Caudal portion of zygomatic arch
Cranial
Caudal: temporal
Cranial: frontal
Cheek bone is called the
Zygomatic arch
The mandible articulates with the temporal bone to form
TMJ (temporo-mandibular joint)
A fractured mandible symphasis can be fixed by
Wrapping wire around it, leaving it like that for 4-6 weeks
3 bones that make up the hard palate
Incisive bone, maxilla, and palatine bones
Most rostral of upper jaw bones
Incisive bone
Most caudal portion of hard palate
Palatine bones
Curled sheets of bone (scrolls) in nose covered w mucous membrane
Ethmoid turbinates
Nerve endings from what nerve are located in the ethmoid turbinates
Cranial nerve I, aka the olfactory nerve
Cranial nerve I is used for
Smell
The openings in the cribriform plate that let the olfactory nerve pass are called
Ethmoid foramina
The ethmoid turbinates in each nasal passage divide them into 4 channels called
Meatuses
When passing a tube through the nose you want the keep it near the
Ventral meatus
The largest meatus is the
Ventral one
Purpose of the turbinates
Warm air, filter air, location for nerve endings for sense of smell
Hornless gene is dom or recessive
Dominant
Red color trait is dom or recessive
Recessive
A female goat with two hornless genes may have
Pseudohermaphrotitism (an intersex condition)
Male goats with two hornless genes often have
Low fertility
Medical term for lumpy jaw in cattle
Actinomyces bovis
Small bones in neck that support trachea
Hyoid bones
A larger cranial cavity, the larger cerebral hemisphere, means higher
Thinking