The Axial Skeleton pt. 2
The sella turcica is a landmark of which bone, and what does it hold?
The sphenoid bone - holds the pituitary gland
What are the regions in of the vertebral column and how many vertebrae and included in each?
Cervical - 7
Thoracic - 12
Lumbar - 5
sacrum -1
coccyx - 1
How many bones make up the appendicular skeleton?
126
Which has more stability and less mobility: the pectoral girdle or the pelvic girdle?
The pelvic girdle is more stable and less mobile than the pectoral girdle
The upper portion of the coxal bone is called? The anterior inferior portion? The posterior inferior portion?
ilium
pubis
ischium
What is the purpose of the occipital condyles?
Articulation point between the C1 vertebrae and the skull
The transverse foramina and the bifid spinous processes are only found on which region of the vertebral column?
cervical
What bones make up the appendicular skeleton?
Pectoral girdle + upper limbs
Pelvic girdle + lower limbs
The glenoid cavity is a feature of what bone? This articulates with the ______ to form the shoulder joint
humerus
What are the two bones that make up the lower leg (calf)? Which of these makes up the shin?
Tibia & fibula. Tibia is the shin bone
What are the 3 bony landmarks are features of the ethmoid bone?
perpendicular plate, crista galli, and cribriform plate
How many pairs of ribs are in the human body? How many are true? how many are false? what is special about the bottom 2 pairs of ribs?
12 pairs. 7 pairs of true ribs, 5 pairs of false ribs. The bottom 2 pairs of ribs are floating
What is the joint that anchors the pectoral girdle to the axial skeleton?
Sternoclavicular joint
How many bones make up a human hand? a human foot?
27 bones in the hand
26 bones in the foot
True or false: the fibula does not articulate with the femur
True
What is the purpose of the 3 cranial fossae? What does each cranial fossa hold?
support and hold different regions of the brain
Anterior cranial fossa - frontal lobes
middle cranial fossa - temporal lobes + pituitary
Posterior cranial fossa - cerebellum + brain stem
What is the name of the cartilage that connects the ribs to the sternum?
costal cartilage
The trochlear notch on the ulna articulates with the __________ on the humerus to create a hinge joint for flexion + extension at the elbow
trochlea
What is the feature on the coxal bones that articulate with the head of the femur?
acetabulum
This tarsal bone is located superior to the calcaneus and directly articulates with the bones of the lower leg.
talus
what are the 14 bones that make up the structure of the face?
maxillae (2), Zygomatic (2), nasal bones (2), lacrimal bones (2), Palatine bones (2), inferior nasal conchae (2), vomer, mandible
Which spinal curvatures are primary? Which are secondary?
Thoracic and sacral are primary
Cervical and lumbar are secondary
What bony landmark forms the point of the elbow? What bone is it part of?
olecranon process - part of the ulna
What joint anchors the pelvic girdle to the axial skeleton?
Sacroiliac joint
Which tarsal bone makes up the heel of the foot?
calcaneus