Week 5 - Axial Skeleton

How many questions are on the Lab Practical Exam 1?

52 questions, including 2 bonus questions.

What is the difference between axial and appendicular bones?

Axial bones form the central axis of the body, while appendicular bones are associated with the limbs.

What are the four primary cavities contained within the skull?

Cranial, oral (buccal), nasal, and orbits.

What is the unpaired bone that forms the superior margin of the orbit?

Frontal bone.

What does the cribriform plate of the ethmoid bone allow?

Passage of olfactory nerves.

Which structure anchors the protective layer of the brain?

Crista Galli.

What is the sella turcica and what does it house?

A depression in the sphenoid bone that houses the pituitary gland (hypophysis).

What bones form the lateral walls and floor of the orbit?

Zygomatic bones.

How many total facial bones are there?

14 facial bones.

What is the significance of the foramen magnum?

It allows the spinal cord to exit the skull.

What process anchors muscles in the temporal bone?

Styloid process.

What are true ribs?

Ribs 1-7 that attach directly to the sternum.

What separates the vertebrae in the vertebral column?

Intervertebral discs.

What are the two unique cervical vertebrae?

Atlas (C1) and Axis (C2).

What function do the lumbar vertebrae serve?

Support the lower back and bear the weight of the torso.

What is the hyoid bone known for in anatomy?

It is a free-floating U-shaped bone in the neck.

What type of bone is the patella considered?

Sesamoid bone.

What is a condyle in bone anatomy?

A rounded knob that articulates with another bone.

What form of connective tissue is bone classified as?

Osseous tissue.

What process allows blood vessels and nerves to pass through the skull?

Foramina such as the Supraorbital Foramen.

What is the characteristic shape of the thoracic vertebrae?

They resemble a giraffe head.

What do the anterior nasal spine and alveolar process belong to?

Maxilla.