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English: Skeleton of a dog: A – Cervical or Neck Bones (7 in number). B – Dorsal or Thoracic Bones (13 in number, each bearing a rib). C – Lumbar Bones (7 in number).D – Sacral Bones (3 in number). E – Caudal or Tail Bones (20 to 23 in number). 1 – Cranium, or Skull. 2 – Maxilla. 3 – Mandible, or Lower jaw . 4 – Atlas. 5 – Axis.
The dog's footpad is a fatty tissue locomotive-supporting organ, present at the bottom of the four legs, consisting of digital pads, a metacarpal pad, and a carpal pad, with dewclaw near the footpad. [26] When a dog's footpad is exposed to the cold, heat loss is prevented by an adaptation of the blood system that recirculates heat back into the ...
The occiput in dog terms is the bump or protuberance clearly seen at the back of the skull in some breeds like the English Setter and Bloodhound. However, in other breeds it is barely perceptible. Myths in dog folklore believed that size of the occipital protuberance was somehow a measure of the dog's sense of smell.
The cranial sutures are the junctions between cranial (or skull) bones. The fontanelles serve as the major sites of bone expansion during post-natal skull growth which accommodates the enlarging brain. The Chihuahua likely has a molera because of neuroparenchymal disproportion i.e. a proportionally big brain for the skull.
In relation to the vagina, the part of the cervix that opens to the uterus is called the internal os and the opening of the cervix in the vagina is called the external os. [1] Between them is a conduit commonly called the cervical canal. The lower part of the cervix, known as the vaginal portion of the cervix (or ectocervix), bulges into the ...
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The giraffe's neck is elongated by heterochrony, extension of the time for the embryonic development of these bones. [4] By convention, the cervical vertebrae are numbered, with the first one (C1) closest to the skull and higher numbered vertebrae (C2–C7) proceeding away from the skull and down the spine. The general characteristics of the ...
A sagittal crest is a ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) of many mammalian and reptilian skulls, among others. The presence of this ridge of bone indicates that there are exceptionally strong jaw muscles.