Anatomy › Injuries and Disorders
Which muscle holds the scapula tight to the posterior wall of the chest and when damaged, sometimes results in a "winged" scapula?
Serratus anterior
Levator scapulae
Deltoid
Teres major
Trapezius
The serratus anterior holds the scapula tight to the posterior wall of the chest. Damage to it, and especially to the thoracic nerve (descending from the axilla) causes this muscle to become paralyzed. Because of this, the scapula can project posteriorly from the back when actions such as pushing against a wall are performed.
What insect carries the parasite responsible for African sleeping sickness?
Tsetse fly
Botfly
Mosquito
Lone star tick
Africa sleeping sickness, also known as African trypanosomosis, is caused by a parasite. The parasite, Trypanosoma brucei rhodesiense, is carried by the Tsetse fly. The fly bite is the mechanism for the parasite entering the body. There are two variations of sleeping sickness, East African and West African.
Your dad comes home from the doctor's office with a diagnosis of "golfer's elbow." Which of the following structures is involved in this injury?
Medial epicondyle
Lateral epicondyle
Biceps brachii muscle
Annular ligament
Median nerve
Golfer's elbow, or medial epicondylitis, is due to inflammation of the medial epicondyle of the elbow. The tendons of several muscles involved in flexing the forearm, wrist, and fingers originate at the medial epicondyle of the humerus at the elbow and this insertion point can become inflamed in response to injury.
Lateral epicondylitis is sometimes associated with tennis elbow.
Your dad comes home from the doctor's office with a diagnosis of "golfer's elbow." Which of the following structures is involved in this injury?
Medial epicondyle
Lateral epicondyle
Biceps brachii muscle
Annular ligament
Median nerve
Golfer's elbow, or medial epicondylitis, is due to inflammation of the medial epicondyle of the elbow. The tendons of several muscles involved in flexing the forearm, wrist, and fingers originate at the medial epicondyle of the humerus at the elbow and this insertion point can become inflamed in response to injury.
Lateral epicondylitis is sometimes associated with tennis elbow.
Which of the following best accounts for the symptoms described?
Radiating pain down back, weakness of function, numbness or tingling
Herniated disk
Lumbar lordosis
Lumbar kyphosis
Scoliosis
Annulal tear
When the nucleus propulsus inside an intervertebral disk protrudes through a weakened area of the annulus fibrosus, the ability of that disk to respond to torsion forces is severely compromised. Further, the protruding nucleus itself puts pressure on the vertebrae, resulting in a "compressed" or herniated disk. This can impact nearby nerves, resulting in radiating pain, weakness, and numbness or tingling.
What insect carries the parasite responsible for African sleeping sickness?
Tsetse fly
Botfly
Mosquito
Lone star tick
Africa sleeping sickness, also known as African trypanosomosis, is caused by a parasite. The parasite, Trypanosoma brucei rhodesiense, is carried by the Tsetse fly. The fly bite is the mechanism for the parasite entering the body. There are two variations of sleeping sickness, East African and West African.
Which muscle holds the scapula tight to the posterior wall of the chest and when damaged, sometimes results in a "winged" scapula?
Serratus anterior
Levator scapulae
Deltoid
Teres major
Trapezius
The serratus anterior holds the scapula tight to the posterior wall of the chest. Damage to it, and especially to the thoracic nerve (descending from the axilla) causes this muscle to become paralyzed. Because of this, the scapula can project posteriorly from the back when actions such as pushing against a wall are performed.
Which of the following best accounts for the symptoms described?
Radiating pain down back, weakness of function, numbness or tingling
Herniated disk
Lumbar lordosis
Lumbar kyphosis
Scoliosis
Annulal tear
When the nucleus propulsus inside an intervertebral disk protrudes through a weakened area of the annulus fibrosus, the ability of that disk to respond to torsion forces is severely compromised. Further, the protruding nucleus itself puts pressure on the vertebrae, resulting in a "compressed" or herniated disk. This can impact nearby nerves, resulting in radiating pain, weakness, and numbness or tingling.
Injury to the obturator nerve leads to __________.
both impaired thigh adduction and loss of sensation of the medial aspect of the thigh
impaired thigh abduction
loss of sensation of the medial thigh
both impaired thigh abduction and loss of sensation of the medial thigh
impaired thigh adduction
The obturator nerve can be damaged in car accidents, abdominal surgeries. It descends thru the pelvis to innervate the medial side of the thigh and adductor muscles of the thigh (external obturator, adductors longus, brevis, magnus and gracilis muscles). Adduction is movement of an extremity closer to the midline of the body. Abduction is the reverse of adduction.
What insect carries the parasite responsible for African sleeping sickness?
Tsetse fly
Botfly
Mosquito
Lone star tick
Africa sleeping sickness, also known as African trypanosomosis, is caused by a parasite. The parasite, Trypanosoma brucei rhodesiense, is carried by the Tsetse fly. The fly bite is the mechanism for the parasite entering the body. There are two variations of sleeping sickness, East African and West African.