Which muscle of the quadriceps femoris group lies on the side surface of the lower extremities?
Anterior tibialis
Rectus femoris
Gastrocnemius
Vastus lateralis
The Correct Answer is D
The quadriceps femoris group is a group of four muscles located in the anterior compartment of the thigh. These muscles are responsible for extending the leg at the knee joint. The four muscles that make up the quadriceps femoris group are the rectus femoris, vastus medialis, vastus intermedius, and vastus lateralis.
The vastus lateralis is the largest of the four muscles and is located on the lateral side of the thigh. It originates from the greater trochanter of the femur, the lateral lip of the linea aspera, and the lateral intermuscular septum. It inserts into the patella and the tibial tuberosity via the patellar tendon. The vastus lateralis is responsible for extending the leg at the knee joint and is also involved in stabilizing the patella.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The malleus, incus, and stapes are three small bones, collectively known as the ossicles, located in the middle ear. These bones work together to transmit sound waves from the eardrum to the inner ear, where they are converted into nerve impulses that are then sent to the brain. The malleus is atached to the eardrum, the incus is in between the malleus and the stapes, and the stapes is connected to the inner ear. Together, they form a chain that amplifies the sound waves and transmits them efficiently to the inner ear.
Correct Answer is C
Explanation
The ABCD rule is a mnemonic used to identify the characteristics of melanoma, which is a type of skin cancer. The leters stand for:
A -Asymmetry: One half of the mole or lesion does not match the other half.
B - Border irregularity: The edges are ragged, notched, or blurred.
C - Color: The color is not uniform and may include different shades of brown or black, or sometimes patches of pink, red, white, or blue.
D - Diameter: The size of the mole or lesion is greater than 6 mm (about the size of a pencil eraser), although melanomas can sometimes be smaller.
This rule is not as useful in detecting other types of skin cancer, such as squamous cell carcinoma, basal cell carcinoma, or sarcoma, as they tend to have different characteristics. However, any new or changing mole or lesion on the skin should be examined by a dermatologist to determine if it is cancerous.
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