Anatomy Terms Quiz

Anatomy Terms

Ventral recumbency is also known as sternal recumbency.
Contact surface refers to the surface of a tooth that touches other teeth.
Mesial surface is the contact surface adjacent to the next rostral or medial tooth.
Umbilicus, also known as the navel, is a pit in the abdominal wall marking the point where the umbilical cord entered the fetus.
Pneumatic bones contain air cavities lined by mucous membrane, communicate with the respiratory system, and are not filled with marrow.
Exoccipital parts bear the occipital condyles and paracondylar process.
Occipital condyles are bony prominences that articulate with the atlas.
The external sagittal crest is a dorsal midline formed by the meeting of the right and left halves of the parietal bone and occipital bone.
The external acoustic meatus is the opening where the external ear is attached.
The sella turcica houses the pituitary gland via a depression.
The zygomatic arch indicates the biting strength of an animal, as masticatory muscles lie on the arches.
The mandible is composed of two halves or dentaries, joined by the mandibular symphysis.
Epiphyoid is another name for the middle cornua.
A syndesmosis is a joint between the ulna and radius.
Foliate sutures offer extreme stability, an example being the zygomatico-maxillary suture.
Symphyses are fibrocartilaginous joints united by flattened disks of fibrocartilage.
A symphysis is functionally classified as an amphiarthrosis.
Intracapsular (intra-articular) ligaments are found within joints and surrounded by the synovial membrane
Annular ligaments surround the joint, strengthening and protecting the capsule.
A spheroid (ball-and-socket) joint allows for movement in almost any direction, as seen in the shoulder joint.
The trigeminal nerve innervates the muscles of mastication.
The zygomaticus muscle is responsible for smiling.
The retractor bulbi muscle retracts the globe (eyeball).
The two major groups of intrinsic muscles are the epaxial and hypaxial muscles.
The transversospinalis, longissimus, and iliocostalis muscles are extensors of the neck.
The occipital bone is the origin of the rhomboideus capitis muscle.
The supraspinatus muscle functions as an extensor of the shoulder joint.
The caval foramen is the opening in the diaphragm for the caudal vena cava.

Anatomy of the Head and Neck

The philtrum is a narrow cleft that marks the union of the two halves of the upper lip.
The facial nerve (cranial nerve VII) innervates the alimentary canal, including the lips.
The lips of dogs are used for communication and aggression, as they are incapable of food intake through them.
The hard palate is formed by processes of the palatine, maxillary, and incisive bones.
There are differences in the soft palate structures of dogs based on breed, with mesocephalic and brachycephalic breeds having distinct features.
The palatoglossal arch forms part of the boundary between the oral cavity and the oral pharynx.
The tongue (lingua) is an elongated, mobile, muscular organ covered by cornified stratified squamous epithelium.
The crown (corona dentis) is the outer layer of the tooth, covered by a thin layer of enamel.
Enamel is the dense, pearly-white outer layer of the crown.
Dentin is chemically similar to bone and has the ability to regenerate.
Dogs are diphyodont, meaning they develop two sets of teeth sequentially.
Premolar and molars are collectively called cheek teeth.
The upper 4th premolar and 1st lower molar teeth are the largest, known as carnassial/sectorial teeth.
Deciduous dentition or the 2-month-old pup's teeth lack molar teeth.
The laryngopharynx functions as both a respiratory and digestive channel.
The caudal nares (choana) are osseous openings between the caudal nasal cavity and nasopharynx.
The piriform recess is a continuation of the floor of the oropharynx on either side of the larynx.
The abdominal portion is the thickest part of the esophagus, measuring approximately 6 mm in thickness.
The greater curvature forms the convex border of the stomach.
The pancreatic duct (ventral duct or duct of Wirsung) is the more cranial and usually smaller duct.
The chordae tendineae connect the leaflets of the AV valve to the papillary muscle.
Heart sounds in dogs are S1 and S2.
The portal vein receives gastroduodenal and splenic veins.
Papillary ridges are used for identification in dogs.
The levator nasolabialis and levator labii superioris muscles are attached to the cartilage of the planum nasale.
Jacobson's organ is another term for the vomeronasal organ.
Stenotic nares describe when the nose of the dog is narrow.
The thyroid cartilage is the largest, taco-shaped cartilage and is referred to as the "Adam's apple" in humans.
The right and left principal bronchi are the primary bronchi.
The renal sinus is a space occupied by the ureter, blood vessels, and nerves.