Question

(9/25/25) formative assessment assignment: chapter 6 the muscular system part 1 (suggested...
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stabilize joints
as skeletal muscles pull on bones to cause movements, they also stabilize the ( 1. ) of the skeleton. muscles and tendons are extremely important in reinforcing and stabilizing joints that have poorly articulating surfaces, such as the shoulder and knee joints. in fact, physical therapy for knee injuries includes exercise to strengthen thigh muscles because they ( 2. ) the knee
generate heat
muscle activity generates body heat as a by - product. as atp is used to power muscle ( 3. ), nearly three - quarters of its energy escapes as heat. this heat is vital in maintaining normal body temperature. skeletal muscle accounts for at least 40 percent of body mass, so it is the muscle type most responsible for generating heat.
additional functions muscles perform other important functions as well. smooth muscles form ( 4. ) that regulate the passage of substances through internal body openings, dilate and constrict the pupils of our eyes, and make up the arrector pili muscles that cause our hairs to stand on end. skeletal muscles form valves that are under ( 5. ) control, and they enclose and protect fragile internal organs.
o 1 support 2 contraction 3 valves 4 voluntary 5 joints
o 1 valves 2 voluntary 3 joints 4 support 5 contraction
o 1 voluntary 2 joints 3 support 4 contraction 5 valves
o 1 joints 2 support 3 contraction 4 valves 5 voluntary
o 1 contraction 2 valves 3 voluntary 4 joints 5 support

Explanation:

1. Muscles pull on bones and stabilize the joints of the skeleton.
2. Strengthening thigh muscles supports the knee in physical - therapy for knee injuries.
3. ATP powers muscle contraction and heat is generated as a by - product.
4. Smooth muscles form valves that regulate substance passage.
5. Skeletal muscles form valves under voluntary control.

Answer:

1. joints 2. support 3. contraction 4. valves 5. voluntary