1st year general Flashcards
How many bones are in the body?
206
What are the names of the two parts of the skeleton?
Axial
Appendicular
What skeletal bones have gender differences?
Supraorbital ridge Mastoid process Chin Carrying angle (more acute in females) Q angle (wider in females) Tilted sacrum (females) Pelvic outlet (larger in females)
Why is anatomical position important?
Point of reference no matter what position the body is in.
What does cranial/rostral mean?
Closer to head
What does caudal mean?
Closer to feet
What are the 4 main planes?
Medial
Sagittal
Frontal (coronal)
Transverse
What is the level of the sternal angle?
T4 and 5
What level is the summit of the iliac crest?
L4
What level is the xiphisternal joint?
T9
What forms the upper limb girdle?
Clavicle and scapula
What forms the lower limb girdle?
Pelvis and sacrum
What bones make up the pelvis?
Ileum
Ischium
Pubis
What is the composition of bone?
Compact
Spongy
Marrow cavity
What is periosteum?
Surrounds compact bone
What are the two types of bone growth?
Appositional
Interstitial
What is appositional bone growth?
Increases width
What is interstitial bone growth?
Increase height
Name 5 types of bone.
Long, short, flat, irregular, sesamoid
What are condyles?
Smooth articulations with another bone
What attaches to epicondyles?
Muscle, tendon and ligaments
Describe the main landmarks of the humerus.
Head
Neck (surgical and anatomical)
Greater and lesser tuberosities
What type of joints are cervical vertebrae?
Synovial plane
Name the two types of bone ossification.
Intramembranous
Endochondrial
Where does intramembranous ossification take place?
Flat bones of skull, face, jaw and centre of clavicle
Where does endochondrial ossification take place?
Initial hyaline cartilage replaced by bone e.g most ling b ones, sternum, ribs, vertebrae
What kind of joints are found in carpal bones?
Synovial plane
What kind of joints are found at the elbow and knee?
Synovial and hinge
What kind of joint is found at the superior and inferior radioulnar joint?
Synovial pivot
What type of joint is the shoulder and hip?
Synovial ball and socket
Name a fibrocartilaginous joint.
IV disc
Name a fibrous joint.
Suture
What type of joint is the wrist?
Synovial ellipsoid
What kind of joint is the symphysis?
Secondary cartilaginous
What are secondary cartilaginous joints made of?
Fibrocartilage and hyaline
What kind of joint is as synchondrosis?
Primary cartilaginous
Give an example of a primary cartilaginous joint.
Long bones
What kind of joint is the Atlanta-axial joint?
Pivot
What is an aponeurosis?
Flat, thin and broad muscle made of dense regular CT
How many joints does the biceps cross?
2 (potentially 3)
How many joints does the brachioradialis cross?
1 (potentially 2)
Describe the movement of the diaphragm.
Descends on contraction and ascend on relaxation (increase thoracic volume)
Name two antagonistic muscles.
Biceps and triceps
Name two synergistic muscles.
Brachialis and brachioradialis
How are muscles compartmentalised?
By deep facial inter muscular septa
What innervates arm and forearm muscles?
Brachial plexus
What innervates thigh and leg muscles?
Lumbosacral plexus
At what level is the brachial plexus?
C5-T1