A & P1 Ch 7 Quiz

Forms part of the middle cranial fossa, dorsal walls of the orbits, and external walls of the skull.

B

True or False All vertebrae posses a body, a spine, and transverse foramina

False

Encloses the pituitary gland

C

When looking at the range of motion of the various sections of the vertebral column the ________ has the most flexibility. Sacral spine Cervical spine Thoracic spine Lumbar spine

Cervical spine

Includes the atlas and the axis

Cervical vertebrae Answer: A

True or False The frontal bone articulates with the parietal bone by means of the sagittal suture

False

True or False The largest and strongest bone of the face is the maxilla

False

The pelvic girdle does not include the _________. Ischium Pubis Ilium Femur

Femur

Which of the following bones is not weight bearing? Femur Fibula Talus Tibia

Fibula

Curvatures of the spine serve the body by ________. Providing space for soft organs in the various body cavities. Limiting the flexibility of the spine and preventing hyperextension. Applying greater pressure to the intervertebral disks preventing them from slipping. Giving additional springiness and flexibility to the spine which absorbs shock.

Giving additional springiness and flexibility to the spine which absorbs shock.

Which of the following is an abnormal curve often seen in pregnant women as they attempt to preserve their center of gravity toward the end of the pregnancy? Kyphosis Hunchback Lordosis Scoliosis

Lordosis

What is the best description for the function of the cranial bones? Protection of the brain Allowing introduction of food into the digestive system House the special sense organs Providing passageways for respiratory gases to move into and out of the body

Protection of the brain

Anchor the pterygoid muscles

Pterygoid process Answer: E

Which of the following is not a movement that can occur between vertebrae? Rotation Supination Flexion and extension Lateral flexion

Supination

The range of motion as well as the direction of motion for the various regions of the spine differs. For example the lumbar spine is capable of flexion and extension but little rotational movement. While the thoracic spine rotates with little flexion or extension. This is due to variation in ________. The thickness of the intervertebral disc. The composition of the intervertebral disks. The orientation of the superior and inferior articular facets. The arrangement of muscular attachment to the spinous processes.

The orientation of the superior and inferior articular facets.

The axial skeleton includes _____________. The skull, vertebral column, and rib cage Arms, legs, hands, and feet The skull, the scapula and the vertebral column The skull, vertebral column, and pelvis

The skull, vertebral column, and rib cage.

Which of the bones of the skull would you most associate with hearing and balance? The parietal bone The temporal bone The zygomatic bone The occipital bone

The temporal bone

Attach to ribs

Thoracic vertebrae Answer: B

True or False All of the bones of the skull, except the mandible, are united by sutures and are therefore immovable.

True

True or False Costal cartilage join most ribs to the sternum

True

True or False In the anatomical position, the lateral forearm bone is the radius

True

True or False The vertebral column is held in place primarily by the anterior and posterior longitudinal ligaments.

True

True or False There are seven cervical, twelve thoracic, and five lumbar vertebrae

True

Which of the following would be most associated with housing the special sense organs? Hyoid bone The bones of the inner ear The facial bones The cranial bones

The facial bones

Which part of the vertebral column receives the most stress by bearing most of the weight of the body? The lumbar region The sacrum The sacral promontory The cervical region

The lumbar region

Contains a pivot joint that allows you to rotate your head "no"

A

Passageway for optic nerves

A

Transvers foramina allow the passage of vertebral arteries

A

The bones in the skull have many different names but what are the boundaries of each bone? Where do they start and stop? The boundaries are indistinct and are simply vague generalized regions. Bones of the skull are continuous but named for their specific markings. Bones of the skull are separated by immobile joints called sutures. Boundaries for skull bones are seen only in the infant skull.

Bones of the skull are separated by immobile joints called sutures.

No canals or foramen present

Coccyx Answer: E

During concussion (a type of traumatic brain injury) the brain will move within the cranial cavity. Damage is caused to the brain as it crashes into parts of the bony cavity walls. Ironically one of the bone markings that can cause serious damage to the brain is the ________. This is ironic because one of the functions of this bone marking is to ________. Perpendicular plate; separate the left and right halves of the nasal cavity. Pterygoid processes; anchor important chewing muscles. Styloid process; attach to and support the hyoid bone. Crista galli; attach to the dura matter holding the brain in place.

Crista galli; attach to the dura matter holding the brain in place.

Allow cranial nerves that control eye movements to enter the orbit

D

True or False The fibula is the major weight-bearing bone of the leg.

False

True or False Lordosis affects the thoracic vertebrae

False

The hyoid bone is unique because it ____________. Is the only irregular bone found in the neck. Is the only bone of the body that does not articulate with any other bone. Is composed of three bones joined together. Is the only bone formed by the fusion of right and left halves.

Is the only bone of the body that does not articulate with any other bone.

Bares most of the weight

Lumbar Answer: C

What is the major function of the axial skeleton? Provide an attachment point for muscles that allow movement. Provide central support for the body and protect internal organs. Provide a space for the major digestive organs. Give the body resilience.

Provide central support for the body and protect internal organs.

Articulates with hip bones of the pelvis

Sacrum Answer: D

Which of the following is an abnormal curvature of the vertebral column often seen in the thoracic region? Swayback Lordosis Kyphosis Scoliosis

Scoliosis

Which of the following can be considered a function of the paranasal sinuses? The paranasal sinuses are passageways for nerves to pass through. Sinuses have rough patches that aid in muscle attachment. Sinuses are often referred to as vestigial, anatomical features with no known function. Sinuses take away a minimal amount of strength from bones while reducing the weight of bones.

Sinuses take away a minimal amount of strength from bones while reducing the weight of bones.

The sphenoid bone is sometimes referred to as a "key stone" of the skull. This is due to the fact that _________. The sphenoid bone is solid like a stone and provides the strength necessary to support the skull. The sphenoid is wedged in the superior most portion of the skull and supports all of the other bones below (excluding the mandible). The sphenoid is in the center of the skull and it articulates (joins) with all of the other bones of the skull (excluding the mandible). The intricate shape of the sphenoid makes it critical to the district characteristics of the individual human face.

The sphenoid is in the center of the skull and it articulates (joins) with all of the other bones of the skull (excluding the mandible).

What are the major functions of the intervertebral discs? To remove curvatures of the spine and provide springiness to the spinal column. To hold together the vertebra and support the body To absorb shock and provide flexibility to the spine. To prevent hyperextension and allow rotation of the spine.

To absorb shock and provide flexibility to the spine