Musculosketal Anatomy p313-314
Terms
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- Name the epidermal layers from surface to base:
-
Stratum Corneum
Stratum Lucidum
Stratum Granulosum
Stratum Spinosum
Stratum Basalis
(below this is the dermis) - Another name for Zona Occludens is
- tight junction
- Another name for Zona Adherens is
- Intermediate Junction
- what does the zona occludens do?
- It prevents diffusion across the intracellular space.
- What proteins are found in the zona adherens (intermediate junction)
-
actin filaments
E-cadherin - What proteins are found in the macula adherens?
-
-Desmoplakin (remember the macula adherens is a.k.a the desmosome)
-keratin - What's the function of gap junctions?
- to allow adjacent cells to communicate for electic and metabolic functions
- What's the purpose of the hemidesmosome? what proteins does it contain?
-
-connects cells to underlying extracellular matrix.
-the hemidesmosome contains INTEGRIN, which maintins the integrity of the basement membrane - What is intramembranous bone formation?
- Spontaneous bone formation without preexisting cartilage
- What is endochondral bone formation?
- Ossification of cartilaginous molds. Long bones form by this type of ossification and primary and secondary centers.
- Unhappy triad/knee injury: clipping from the lateral side in a football game can cause...
- damage to medial collateral ligament (MCL), medial meniscus, and anterior cruciate ligament (ACL)
- what do anterior and posterior in ACL and PCL refer to?
- sites of tibial attachment
- Positive anterior drawer sign indicates tearing of the ..
- ACL
- Abnormal passive abduction indicates tearing of the...
- MCL
- Name the 4 rotator cuff muscles
-
Supraspinatus
Infrapinatus
Teres minor
Subscapularis - what is the function of the Supraspinatus
- helps deltoid abduct arm
- what is the function of the Infrapinatus
-
laterally rotates arm
(infraSPINatus only SPINs the arm - doesn't adduct or abduct) - what is the function of the Teres minor
- adducts and laterally rotates arm
- what is the function of the Subscapularis
- adducts and medially rotates arm