Quadriceps femoris (Patella - largest sesamoid bone)
Peroneus longus
Tibialis anterior
Tibilais posterior
Lateral head of gastrocnemius
Psoas major
Gluteus maximus
Flexor hallucis brevis
*Peculiarities of sesamoid bones-
Ossify at birth
Devoid of periosteum
Absence of Haversian system
STRUCTURE LEVELS IN BODY
Xiphoid process T9
Celiac trunk T12 L1
Spleen 10th rib
Superior mesenteric artery L1
Stomach pylorus L1
Spinal cord ends adults L1-L2
Spinal cord ends children L3
Pancreas L1L2
Inferior mesenteric artery L3
Umbilicus L3L4
Highest point of iliac crest L4
Transtubercular plane L5
ASIS Sacral promontory
Cervical 8
Thoracic 12
Lumbar 5
Sacral 5
Coccygeal 1
Total 31
RELATIONSHIP BETWEEN VERTEBRAE AND SPINAL CORD SEGMENTS
Cervical vertebrae Add 1 to vertebral level
Thoracic 1-6 Add 2 to vertebral level
Thoracic 7-12 Add 3 to vertebral level
Lumbar 1 All sacral segments over
Below L1 Cauda equina
C7 Most prominent spinous
process at the base of
neck
T3 Level of the spine of
scapula
T7 Level of lower angle of
scapula
T12 Floating rib
L4 Level of iliac crests
S2 Level of posterior
superior iliac spine
*Pregnant nerves- these are the nerves which carry a blood vessel in them.(SCIATIC,OPTIC NERVES)
*Nutrient artery to the tibia is the largest nutrient artery in the body
*Housemaid’s knee- Prepatellar bursitis
Clergyman’s knee- Infrapatellar bursitis
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