BONES
label my tibia, fibula, and foot
picture on slide
what are the main functions of muscle tissue?
• Produce movement
• Stabilize body
• Store and move substances
• Produce heat
Unique properties
• Electrical excitability
• Contractility
• Extensibility
• Elasticity
• Limited regeneration and myogenesis
If I have had a stroke and I am experiencing left eye droop what muscle is probably damaged.
orbicularis occuli
what are the four rotator cuff muscles.
give the movement of each and location of the attachments.
supraspinatous - external rotation, abduction
infraspinatous - external rotation
teres minor - external rotation
subscapularis- internal rotation, inter tubercular groove, anterior attachment
if someone is having intense pain that radiates from the gluteal region ll the way down their leg what is probably causing this pain/numbness.
sciatic nerve piriformis muscle
which way is my ankle most likely going to roll? why?
it will most likely roll in a supinated direction because there are less ligaments on my fibular side.
deltoid ligament on the medial malleolus
what are the three different types of muscle tissue and their location.
cardiac- heart and vessels
skeletal- on bones
smooth- in the viscera and organs
what are the borders for by triangle of my neck.
trapezius, stm
brachial plexus
B- extensor carpi radialis brevis
L- abductor pollicis longus
B- extensor pollicis brevis
L- extensor pollicis longus
what are the borders of my femoral triangle
lateral border- sartorius
floor- pectineus
medial border- adductor longus
superior- inguinal ligament
inside the triangle is my femoral nerve, artery, vein
What do the arches of the feet do
Two arches support the
weight of the body
• The arches provide
spring and leverage to
the foot when walking
• The arches flex when
body weight is applied
what type of muscle would have the greatest range of motion.
what muscle would have the most power
a long muscle
a muscle with a lot of fibers
what are my abdominal muscles. demonstrate the fiber directions with your hands
rectus abdominus
external abdominal obliques
internal abdominal obliques
transverse abdominis
in my anterior brachium what are my main muscles?
biceps brachii, brachialis, brachioradialis, coracobrachialis
what can the sartorius do
- anterior superior iliac spine to medial condyle of tibia
- helps with flexion of knee and hip and allows for external rotation
rectus femoris is the aiis
what is the purpose of the acl, mcl, pcl, and lcl
they give the knee stability
mcl- medial movement
lcl- lateral movement
acl- preventing too much movement anteriorly
pcl- preventing too much movement posteriorly
list the levels of muscle organization
filament
myofibril
muscle fibers
endomysium
fascicle
perimysium
muscle
epimysium
group of muscles
fascia
explain the two different types of breathing.
Normal breathing:
The diaphragm contracts and pulls the thoracic cage downwards
The external intercostals move the rib cage up
This allows for air to move into the lungs
For exhalation the lungs and muscle passively relax allowing oxygen to leave
Labored :
During exercise, illness, distress, smoking
Scalene and pectoralis minor helps raise the ribs along with the external intercostals
For exhalation the intercostals and rectus abdominus and external obliques help to pull the ribs back down and help push the diaphragm up
I have a 5 lb dumbbell in each hand and have my arms parallel to the ground in front of me at shoulder level. I then begin to rotate the weights in my hand while keeping my shoulder and arms parallel to the ground. what two muscles are being used.
pronator teres and supinator
what makes up my triceps sural
gastrocnemius
soleus
helps with knee flexion and plantar flexion
During a soccer game, a player is going in for a kick. He kicks with his left foot, and his right foot planted on the ground. As he kicks, another player rams into the lateral side of his right leg and results in a medial twist and anterior projection of the tibia. From the description and the image below, what three structures are most likely to be strained/torn?
ACL or PCL
MCL or LCL
Medial or lateral meniscus
Medial Collateral Ligament (MCL) - results from the lateral force
•Medial meniscus – results from a fixation with rotation, specifically internal rotation
•Anterior Cruciate Ligament (ACL) - results from excessive anterior movement
in the sliding filament theory what do myosin binding heads grab on to and what do they do if I am doing a bicep curl.
they attach to actin and then will pull causing a concentric contraction
what are my erector spinae
muscles that help keep my spine erect
spinalis
illiocostalis
longissimus
what is an easy way to remember the flexor muscles of my forearm.
use your opposite hand
pes anserine attachments