Week 5 Axial (Mastering A&P)
The structure highlighted is the superior articular process.
The structure highlighted is the superior articular process.
The suture highlighted is the lambdoid suture.
The suture highlighted is the lambdoid suture.
The spinous processes are especially long on __________ vertebrae.
Thoracic
Which of these is not one of the facial bones? A.) frontal B.) maxilla C.) zygomatic D.) mandible E.) vomer
A.) frontal
Of the following bones, which is unpaired? A.) vomer B.) nasal C.) lacrimal D.) palatine E.) maxillary
A.) vomer
Spinal roots travel through the highlighted opening.
Spinal roots travel through the highlighted opening.
What bones form the calvaria (or skullcap)?
frontal, parietal, and occipital
How many pairs of ribs do humans normally have?
12 (1-7 True Ribs, 8-12 False Ribs, 11-12 Floating Ribs)
Scoliosis
An exaggerated lateral curvature of the spine.
What vertebrae is the most massive and least mobile?
Lumbar Vertebrae
What region are the widest intervertebral discs found?
Lumbar region
What gland does the hypophyseal fossa of the sella turcica contain?
Pituitary Gland
What are the two spinal curves present at birth called?
Primary curves
What is the second cervical vertebra known as?
The Axis
What part of the sternum articulates with the clavicles?
manubrium
Vertebrae of which regions are fused in the adult?
sacral and coccygeal regions
Which suture separates the right and left parietal bones?
sagittal
The vertebra prominens is another name for the ________ vertebra.
seventh cervical
sphenoid bone
sphenoid bone
What is the large foramen that serves as a passageway for the medulla of the brain and the accessory nerve (XI)?
Foramen magnum
coronoid process
The coronoid process is the insertion point for the temporalis muscle, which closes the jaw.
Hyoid Bone
The bone in this image is the hyoid.
The bone in this image is the hyoid.
The bone in this image is the hyoid.
Where is the dens process found?
The dens process is found on the axis.
external acoustic meatus
The external acoustic meatus is also known as the external auditory canal, which terminates at the tympanic membrane of the ear.
What are the four primary sutures?
The four primary sutures are lambdoid, coronal, sagittal, and squamous.
The highlighted lumbar curvature develops at the time that a child is able to sit up.
The highlighted lumbar curvature develops at the time that a child is able to sit up.
The highlighted structure allows lateral rotation of the head.
The highlighted structure allows lateral rotation of the head.
The highlighted structure is a feature found on all of the vertebrae.
The highlighted structure is a feature found on all of the vertebrae
The highlighted structure is an important clinical marker, it aligns with the superior border of the heart.
The highlighted structure is an important clinical marker, it aligns with the superior border of the heart.
The highlighted vertebrae does NOT articulate with the ribs.
The highlighted vertebrae does NOT articulate with the ribs.
mandibular foramen
The mandibular foramen is the opening of a passageway for nerves and blood vessels that service the lower teeth.
mandibular notch
The mandibular notch is the depression that separates the coronoid and condylar processes.
mastoid process
The mastoid process is an attachment site for muscles that extend or rotate the head.
How is the bony portion of the nasal septum formed?
The perpendicular plate of the ethmoid and vomer bone.
What does the the nasal conchae do in the nasal passageways?
The nasal conchae creates turbulence in the nasal passageways.
Describe the spin processes on cervical vertebrae.
The spinous processes on cervical vertebrae are short and vertebrae C2-C6 contain a notched spinous process.
Describe the spin processes on lumbar vertebrae.
The spinous processes on lumbar vertebrae are short and stumpy.
The structure highlighted is classified as floating ribs.
The structure highlighted is classified as floating ribs.
What forms the vertebral arch?
The vertebral arch is formed by the pedicles and the laminae.
What is the weight-bearing region of a vertebra?
The vertebral body
What structure does the spinal cord pass through?
The vertebral foramen is the structure that the spinal cord passes through.
What are the True Ribs?
True ribs are ribs 1-7 and are called verterbrosternal ribs.
The most significant skull growth occurs before what age?
5
Describe the functions of the axial skeleton.
Provides an attachment for muscles that move the appendicular skeleton, protection for the brain and spinal cord, an attachment for muscles involved in respiration, and muscles that move the head, neck, and trunk.
Scoliosis is a condition characterized by the exaggerated lateral bending of the highlighted structure.
Scoliosis is a condition characterized by the exaggerated lateral bending of the highlighted structure.
The bone in this image directly articulates with all 12 ribs. The bone is the sternum.
The bone in this image directly articulates with all 12 ribs. The bone is the sternum.
The structure highlighted is the Crista galli.
The structure highlighted is the Crista galli.
The structure highlighted is the Intervertebral foramina.
The structure highlighted is the Intervertebral foramina.
The structure highlighted is the Lumbar curvature and vertebra.
The structure highlighted is the Lumbar curvature and vertebra.
The structure highlighted is the Transverse Process.
The structure highlighted is the Transverse Process.
The structure highlighted is the True Ribs.
The structure highlighted is the True Ribs.
The structure highlighted is the anterior fontanelle.
The structure highlighted is the anterior fontanelle.
The structure highlighted is the cervical vertebrae and curvature.
The structure highlighted is the cervical vertebrae and curvature.
The structure highlighted is the costal cartilages of true ribs.
The structure highlighted is the costal cartilages of true ribs.
The structure highlighted is the frontal sinus.
The structure highlighted is the frontal sinus.
The structure highlighted is the inferior articular facet.
The structure highlighted is the inferior articular facet.
The structure highlighted is the mastoid process.
The structure highlighted is the mastoid process.
The structure highlighted is the occipital condyles.
The structure highlighted is the occipital condyles.
The structure highlighted is the pedicle.
The structure highlighted is the pedicle.
The structure highlighted is the sternal angle.
The structure highlighted is the sternal angle.
The structure highlighted is the superior articular facet.
The structure highlighted is the superior articular facet.
The structure highlighted is the thoracic vertebrae.
The structure highlighted is the thoracic vertebrae.
The structure highlighted is the vertebral foramen.
The structure highlighted is the vertebral foramen.
styloid process
The styloid process is an attachment site for ligaments and tendons associated with the hyoid bone.
Which bones make up the thoracic cage?
The thoracic cage is made up of the thoracic vertebrae, the ribs, and the sternum.
Transverse Foramina is a feature unique to the highlighted vertebrae.
Transverse Foramina is a feature unique to the highlighted vertebrae.
The ribs articulate with the ________ of the vertebrae.
Transverse processes
The four curves of the adult spinal column are not all present at birth. Which of the following are the secondary curves, which do not appear until several months later?
cervical and lumbar
The zygomatic arch is formed by the union of processes from which two bones?
temporal and zygomatic
Describe a distinguishing feature of a cervical vertebra.
transverse foramen
Which of these is NOT a cranial bone? A.) temporal B.) parietal C.) maxilla D.) ethmoid
C.) maxilla
How many bones does the skull contain?
22
Lordosis
An exaggerated lumbar curvature of the spine.
The frontal and parietal bones articulate at the ________ suture.
Coronal
Which of the following statements about the coccyx is true? A.) Fusion is delayed until the mid-twenties. B.) It is the most caudal vertebral region. C.) It anchors a muscle that constricts the anal opening. D.) It consists of three to five coccygeal vertebrae. E.) All of the answers are correct.
E.) All of the answers are correct. (Fusion is delayed until the mid-twenties, It is the most caudal vertebral region, It anchors a muscle that constricts the anal opening, It consists of three to five coccygeal vertebrae.)
The first cervical vertebra is better known as the A.) primum. B.) cervix. C.) apex. D.) axis. E.) atlas.
E.) atlas.
What are the membranous areas between the cranial bones of the fetal skull?
fontanelles
The ________ bone is unusual because it doesn't contact another bone.
hyoid
Spinal nerves run to and from the spinal cord within what structure?
intervertebral foramina
