Anatomy Terms

Question 1

Basicranium

Answer 1

Base of the skull

Question 2

Diphyodont

Answer 2

Any animal with two sets of teeth, initially the deciduous set and consecutively the permanent set

Question 3

Rugose

Answer 3

Wrinkled / corrugated

Question 4

Ziphodonty

Answer 4

Blade-shaped teeth with well-developed serrated cutting edges

Question 5

Periotic

Answer 5

It houses the inner ear and, along with the tympanic bulla and the three auditory ossicles, is one of the five cetacean ear bones

Question 6

The three auditory ossicles

part of the cetacean ear bones

Answer 6

1. Malleus
2. Incus
3. Stapes

Question 7

Anterior Process

Answer 7

The anterior most portion of the periotic, and it is usually squared or triangular in medial view.

Question 8

Mallear Fossa

Answer 8

Posterior to the anterior pedicle of the tympanic bulla, the anterior process bears a circular fossa for the head of the malleus (mallear fossa), which is relatively well defined in all cetaceans except crown mysticetes