Bad to the Bone
These release enzymes to dissolve bone matrix and release minerals.
Osteoclasts
This structure is the weakest point of the skull.
Pterion
A motor unit can be defined as this.
A motor neuron and all of the skeletal muscle fibers
This is the part of the muscle that moves.
Insertion
This cranial nerve innervates the superior oblique eye muscle.
CN IV - Trochlear
This fracture is common in abused children.
Spiral
This causes a dangerous increase in ICP, which can lead to herniation of brain tissue and ischemia.
Extradural hematoma
Thin filaments contain this.
Actin
These muscles originate at the lower border of the rib, insert into the superior border of the rib below, and their action is to elevate the ribs in inspiration.
External intercostals
Suicide disease results from damage to the trigeminal nerve, which originates in this part of the brain.
Pons
This fracture is more dangerous due to the risk of infection.
Open/Compound
Damage to this area can damage the phrenic nerve leading to spastic paralysis.
C3-C5
A triad of the sarcoplasmic reticulum is composed of these.
T tubule + 2 terminal cisternae
Straining of this muscle can increase impedance for the heart leading to MI or cardiac arrest.
Puborectalis
Name the origin and exit of the nerve that is involved with Bell's palsy.
The nerve is the facial nerve.
Origin - PMJ/Pons/whatever
Exit - Internal Acoustic Meatus
This is the functional unit of compact bone.
Osteon
Damage to the superior gluteal nerve leads to this clinical manifestation.
Trendelenburg Gait
These are the primary cause of the transmembrane potential.
Leak channels
This is the largest muscle of the group that positions the pectoral girdle.
Trapezius
These are the 3 branches of the trigeminal nerve.
Ophthalmic, Maxillary, Mandibular
Parathyroid hormone mobilizes calcium from bone by inhibiting _________ and increasing _____________.
Inhibits - osteoblasts
Increases - osteoclasts
A supracondylar fracture with direct damage can cause interference to the brachial artery. The ischemia resulting in uncontrolled flexion of the hand is known as this.
Volkmann's (ischaemic) contracture
Describe what equilibrium potential is and what the most important gradients are in most cells.
Equilibrium potential: when electrical and chemical gradients are equal and opposite resulting in no net movement across the membrane.
Na+ and K+ are most mportant
These are the 4 groups of axial muscles.
1. Head and neck
2. Vertebral column
3. Thoracic and abdominal walls
4. Pelvic floor
These cranial nerves are responsible for eye movement.
Oculomotor - III, Trochlear - IV, Abducens - VI