Joints & Articulations
Which functional joint classification is mostly found in the appendicular skeleton?
Diarthroses
What are the two states of skeletal muscle?
Relaxation & contraction
What quadriceps muscle is abbreviated as VL?
Vastus lateralis
Which posterior hip muscle is commonly implicated in sciatica?
Piriformis
What kind of channel is opened by an electrical charge?
Voltage-gated channel
Which type of cartilaginous joint can be defined as a plate of hyaline cartilage connecting bones?
Synchondroses
Which energy system makes the least ATP?
Phosphagen (PCr) System
What is the classification of four synergist/fixator muscles in the shoulder that prevent dislocation?
Rotator cuff muscles
Which muscle characteristic is defined by the ability to recoil to resting length without being disfigured?
Elasticity
Which type of arthritis usually arises between 40-50 years of age and is most common in women?
Rheumatoid arthritis
What liquid is defined by viscous, plasma filtrate with hyaluronic acid?
Synovial fluid
What does the action potential propagate (travel) along in ECC?
Sarcolemma
What is the name of the thick fascial band on the lateral aspect of the thigh?
Iliotibial band
Which ligament is repaired via Tommy John surgery?
Ulnar Collateral Ligament (UCL)
What happens to myosin if the muscle has no ATP to contract?
Myosin can't attach OR detach to/from actin
Which synovial joint has a high degree of movement but low stability, making it prone to injury in overhead throwing sports?
Glenohumeral joint
Which skeletal muscle fiber type has moderate force and is moderately fatigueable?
Type IIa (Fast-oxidative)
Which muscle is the prime mover in finger extension and abducts (flares) the fingers?
Extensor digitorum
What condition occurs from excess tightness or hypertrophy of anterior compartment muscles putting pressure on the tibia?
Shin splints
What two things meet at a neuromuscular junction?
Motor neuron and its fiber group
Which synovial joint is formed by the head of the femur articulating with the deep acetabulum of the pubis?
Coxal (hip) joint
What happens to the newly produced ATP during the Cleavage stage of the SFM?
Binds to myosin head
Which two thigh muscles flex both the hip and the trunk at the hip?
Iliacus and psoas major
What three muscles make up the erector spinae group?
Iliocostalis, longissimus, and spinalis
Which fascicle pattern has a large muscle belly and tapered ends near the tendon?
Fusiform