Lab 9 Skeletal System Flashcards
How many bones make up the Axial Skeleton?
80
How many bones make up the Appendicular Skeleton?
126
How many bones are in the adult skeleton?
206
What does the Axial Skeleton consist of?
- Skull
- Vertebral Column
- Thoracic Cage
What bones make up the Appendicular Skeleton?
- Upper and Lower Limps
- Girdles (pectoral and pelvic)
What are the connective tissues between the areas of the infant skull?
Fontanels
-provide flexibility while passing through the birth canal
How many facial and cranial bones are there?
22
What is the only moveable bone in the skull?
Mandible
What is the purpose of fontanels in them infant skull?
To provide flexibility while passing through the birth canal.
What structure passes through the Foramen Magnum?
Spinal Cord
The occipital condyles rest upon which bone?
Atlas (C1)
What is the function of the Hyoid bone?
Attachment point for the muscles of the tongue and larynx
How many vertebrae are at each vertebral region?
Cervical 7
Thoracic 12
Lumbar 5
How many fused vertebrae make up the sacrum ?
5 fused vertebrae.
The coccyx includes how any vertebrae?
3-5 fused vertebrae.
Define the attachments points of True Ribs.
attach posteriorly to the thoracic vertebrae and anteriorly to the sternum
Which ribs attach to the above ribs’ costal cartilages anteriorly?
False Ribs
What are floating ribs?
Ribs 11 and 12, they do not attach anteriorly to the thoracic cage.
Which bone is U-shaped and located anteriorly in the upper neck?
Hyoid Bone
Which bones are the first 7 bones of the backbone?
Cervical Vertebrae
Which region of vertebrae articulate with the ribs?
Thoracic Vertebrae
Which 2 bones contribute to the zygomatic arch?
Temporal and Zygomatic bone
The maxilla and vomer compose what structure?
Hard Palate
How many carpal bones are there?
8
How many phalanges are in each hand?
14
What are three differences between a male and female pelvis?
Pubic Arch: Males; deep and narrow Women; are shallow and wide
Acetabula: Males; large and close together Female; small and far apart
Pelvic Brim: Male; heart shaped Female; oval
Which muscles’ tendon is the patella imbedded in ?
quadriceps femoris muscle
How many tarsal bones are in the foot?
7
Which bone articulates with the acetabulum and the tibia?
Femur
Which bone do you sit on?
Ischial Tuberosity
Name the 3 bones compose the os coxae
- Ilium
- Ischium
- Pubis
