Sovi.AI - AI Math Tutor

Scan to solve math questions
ENFRDEESJAZH-CNZH-TW

QUESTION IMAGE

of the following items listed below, which is the best description for …

Question

of the following items listed below, which is the best description for why skeletal muscle stores glycogen?
the glycogen is an insulating layer that helps regulate body temperature.
skeletal muscle is a heavy consumer of energy.
glycogen provides a smooth surface for filaments to slide on.
glycogen is part of muscles rigid supporting framework.
13.
part a
muscles that help maintain upright posture are fixators.
true
false
14.
part a
what muscle is primarily responsible for preventing foot drop?
extensor digitorum longus
tibialis anterior
extensor hallucis longus
fibularis tertius
15.
part a
which of the following is not a muscle primarily involved in the breathing process?
lattisimus dorsi
external intercostal
internal intercostal
diaphragm
16.
part a
the most powerful muscle in the body is the ______.
quadriceps femoris
rectus abdominis
gastrocnemius
gluteus maximus

Explanation:

Question 12
Brief Explanations

To determine why skeletal muscle stores glycogen, analyze each option:

  • Option 1: Glycogen isn’t an insulating layer (that’s fat). Eliminate.
  • Option 2: Skeletal muscle uses a lot of energy; glycogen is stored as an energy reserve (broken down to glucose for ATP). This fits.
  • Option 3: Glycogen doesn’t provide a smooth surface (that’s related to proteins like actin/myosin or connective tissue). Eliminate.
  • Option 4: Glycogen isn’t part of the rigid framework (that’s the skeletal system or connective tissue in muscle). Eliminate.
Brief Explanations

Fixator muscles stabilize a bone (the origin) so another muscle (the prime mover) can act on a different bone. Muscles that maintain upright posture (e.g., postural muscles of the back) act as fixators to keep the spine/body stable. So the statement is True.

Brief Explanations
  • Extensor digitorum longus: Extends toes, not primary for foot drop.
  • Tibialis anterior: Dorsiflexes the foot; foot drop is due to loss of dorsiflexion (e.g., nerve injury), so tibialis anterior prevents foot drop by lifting the foot.
  • Extensor hallucis longus: Extends the big toe, not primary for foot drop.
  • Fibularis tertius: Assists in dorsiflexion/eversion, but not the primary muscle for preventing foot drop.

Answer:

Skeletal muscle is a heavy consumer of energy.

Question 13