Ch. 7 - The Axial Skeleton

From superior to inferior, how many individual vertebrae are there of each type? 7; 5; 5; 4; 12 7; 5; 5; 12; 4 7; 12; 5; 5; 4 12; 5; 5; 7; 4 12; 7; 5; 5; 4

7; 12; 5; 5; 4

T/F: A martial artist receives a punch that causes the xiphoid process to break. This suggests that the punch hit the pectoral girdle.

F

T/F: A patient has to have surgery as a result of a sports accident. Several of their carpal bones must be removed after being smashed. The surgery is occurring in the foot.

F

T/F: All ribs articulate with the sternum.

F

T/F: Condyles are found in the axial skeleton only.

F

T/F: Medial and lateral condyles of the femur are involved in the hip joint.

F

T/F: Men have one rib fewer than women.

F

T/F: The first cervical vertebra is the axis and the second is the atlas.

F

T/F: The mastoid process cannot be palpated on a living person.

F

T/F: The optic foramen is part of the sphenoid bone.

F

The sternum develops in three parts: the lower manubrium, middle body, and upper xiphoid.

F - it is the opposite (xiphoid is the lower part, manubrium is the upper part)

Which of the following bone shape is stated with an incorrect example? Flat bone - thigh bone Short bone - wrist and ankle bones Irregular bone - vertebrae Long bone - forearm bones

Flat bone - thigh bone

Jamal is sitting at a table resting the points of his elbows on the table in front of him. What bony prominence is he resting on?

Olecranon of ulna

Madeleine is palpating her shoulder to locate her scapular spine. Where should she look for it?

On the posterior side of her shoulder

T/F: In anatomical position the radius is on the lateral side of the forearm.

T

T/F: The clavicle articulates with the sternum and humerus.

T

T/F: The ischium is posterior to the pubis and inferior to the ilium.

T

T/F: The number of bones in most people is 206.

T

T/F: The parietal bones meet each other along the sagittal suture.

T

The head of the femur is much larger than the head of the humerus. Which of the following best explains the difference in size of these bony landmarks?

The femoral head supports more weight than the humeral head.

Lavonne's toddler son is very curious, and has discovered that he can stick things up his nose! When he sticks his finger in his nose he feels the nasal septum in the midline of his nasal cavity. Which of the following structures makes up the nasal septum? Select all that apply.

Vomer Perpendicular plate of ethmoid

A woman suffered a whiplash injury in a car accident. A day after the accident she was admitted to the hospital after showing signs of a cerebrovascular accident (stroke). How might the two be related to each other?

Whiplash caused injury to the cervical spine thereby affecting the transverse foramen and leading to a blockage of the vertebral arteries.

The acetabulum is

a depression in the hip bone that receives the head of the femur.

A rounded knob that articulates with another bone is called a(n) __________.

condyle

Contains the cribriform plate

ethmoid

Contains the perpendicular plate which forms the superior part of the nasal septum

ethmoid

Contains the superior and middle nasal conchae

ethmoid

The paranasal sinuses are lined with a membrane that creates mucus during allergies or the common cold. Presence of mucus and swelling of the membranes can cause a "sinus headache." If Regina has a cold and she feels the pain of a sinus headache inferior to her eyes, which bone is housing the affected paranasal sinus?

ethmoid

The acetabulum articulates with the __________.

femur

Which of the following bones is classified as a long bone? vertebra scapula femur sternum phalange

femur

The talus, calcaneus, navicular, cuboid, and lateral, intermediate, and cuneiform bones are all part of the

foot

The __________ is a U-shaped bone that sits above the larynx yet does not articulate with any other bone.

hyoid bone

The superior and lateral part of the hipbone is formed by the

ilium

When you are sitting, your body weight rests on which of the following?

ischial tuberosity

Which is not a cranial bone of the skull? Mandible Parietal Occipital Frontal

mandible

A woman has to have two of her lower teeth pulled due to decay. In order to anesthetize the nerve that supplies the lower teeth, the dentist must place the anesthetic agent into the

mandibular foramen

A cleft palate results from incomplete development of the

maxillae

The bones which form the palm of the hand are the

metacarpals

Contains the foramen magnum

occipital

Jonathan was not wearing a helmet while riding his bicycle. He lost control of his bike after hitting a rock on the street. After the fall and losing consciousness, he was taken to the ER where X-rays revealed a fracture of the cranial base across a protuberance in the back of his head. Which cranial bone was fractured?

occipital

The most prominent part of the elbow is formed by the

olecranon process of the ulna

Which of the following bones is adjacent to both the coronal and lambdoid sutures?

parietal bone

Which of the following bones are sesamoid bones?

patellae

All the bones below belong to the axial skeleton, except the __________, which belongs to the appendicular skeleton. thoracic vertebra scapula mandible frontal bone

scapula

Contains the sella turcia

sphenoid

The __________ suture separates the temporal bone from the parietal bone.

squamous

The manubrium is part of what bone?

sternum

Most of the bones of the skull are connected by immovable joints called __________.

sutures

Contains zygomatic process

temporal

Which of the following bones is not part of the orbit of the skull? Ethmoid Frontal Vomer Sphenoid

vomer

Which of the following is an example of a bone you can palpate on your superficial face?

zygomatic