Lab 4 Review

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Which special movement of the clavicles occurs when one crosses one's arms?

Protraction

The humeroradial joint shown below allows for pronation and supination of the forearm. What type of motion does the radius demonstrate?

Rotation

How many different types of synovial joints can be found in the arm?

6 - A ball and socket join at the shoulder, hinge and pivot joints at the elbow, a condylar joint at the wrist, plane joints between carpals, a saddle joint at the first carpometacarpal join, and additional condylar and hinge joints in the fingers.

Each thoracic vertebra has _____.

A long, slender spinous process that projects inferiorly

Secondary spinal curves?

Cervical and lumbar

The path of the nerves and blood vessels is marked on the rib by the____

Costal groove

Which foramen is the passageway for nerves to exit the cranium and innervate the jaw and its associated structures?

Foramen ovale - this is the passageway for the mandibular branch of the trigeminal nerve.

The temporal bone DOES NOT _______

Form part of the medial wall of the cranium

Movement in anterior/posterior plane that increases the angle between articulating elements past the anatomical position is called?

Hyperextension

Which of the following articulations demonstrates a plane joint?

Intercarpal joints of the wrist. The carpal bones slide against each other to allow subtle movements of the hand

Elevation of the medial edge of the sole of the foot describes which of the following?

Inversion

Regarding the vertebral arch, what is the significance of the lamina?

It forms the "roof" of the vertebral foramen.

The crista Galli, a structural feature of the ethmoid bone, is described as???

It is a bony ridge that projects superior to the anteromedial floor of the cranium

Bending the vertebral column from side to side is an example of?

Lateral flexion

The anterior fontanelle __________

Lies at the intersection of the frontal, sagittal, and coronal sutures

Which structure articulates with the clavicles and the cartilages of the first pair of ribs?

Manubrium

Which structural feature is the site of articulation between the skull and the first vertebra of the neck?

Occipital condyle

Which structure are the joint surfaces that allow the cranium to articulate with the vertebral column?

Occipital condyles - These are the joint surfaces that articulate with the first cervical vertebra (also known as atlas) and allow the flexion and extension of the skull.

Which suture forms the boundary between the temporal bone and the parietal bone of that side?

Squamous suture

Which structure acts as a passageway for blood vessels that provide oxygen and nourishment to the brain?

The carotid canal - This provides large volume of blood supply to the brain's metabolic needs for oxygen/nutrients.

Which skull structure encloses the structures of the inner ear?

The petrous part of the temporal bone

Which accurately describes the pterygoid processes?

They are vertical, interior projections that originate on either side of the sphenoidal body

Which description applies to the prominent transverse lines located on the anterior surface of the sacrum?

They mark the former boundaries of individual vertebrae that fuse during the formation of the sacrum.

At which joint do pronation and supination occur?

proximal radio-ulnar joint


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