根据第三段 “Your muscular system is made up of all the muscles in your body. Your skeleton could not move without muscles. You also need your muscular system to keep your posture."可知,人们需要肌肉 系统来维持姿势,故选D。 【13题详解】 细节理解题。根据第四段 “The nervous system is the...
Learn about the organization of skeletal muscle tissue. Discover the connective tissue layers associated with the skeletal muscles and their functions. Related to this QuestionWhich of the following options is correct? During skeletal muscle contrac...
Smooth, or involuntary muscle is not made of fibers, and this type of muscle looks smooth, not striated.
Muscle is one of four major types of tissue found within the body, and it is made of cells that are specialized to contract, or shorten. There are three main types of muscle: cardiac, smooth and skeletal. Answer and Explanation: The type of muscle tissue that...
Considering the data from the muscle stimulation lab, which muscle did not reach the point of muscle overload? a. upper forelimb b. lower forelimb c. calf d. thigh Skeletal System: The term skeletal system determin...
According to paragraph 6, which of the following is true about the wings of birds? A. All birds flap their wings constantly by using breast muscles. B. Eagles and hawks have wings that propel them at 170 km/hr. C. The airfoils of birds function like the wings on airplanes. D. Wings...
In most human skeletal muscles(骨骼肌),there are fast-twitch fibers and slow-twitch fibers. Fast-twitch fibers(快肌纤维)help us move quickly. They allow weightlifters to lift hundreds of kilos from the ground and over their heads in seconds. The legs of a super mara...
The ala provides an insertion point for the gluteal muscles laterally and the iliacus muscle medially. How many hips do humans have? The two hip bones join at the pubic symphysis and together with the sacrum and coccyx (the pelvic part of the spine) comprise the skeletal component of the ...
The human body has over 600musckles that perform specialized functions. Half of the total weight of humans comprises of muscles. There are various types of muscles such as skeletal, involuntary and cardiac muscles. The major role of skeletal muscle is holding the sk...
Results showed that the aerobic capacity of skeletal muscles increased due to a roughly 20% increase in mitochondria in type I (slow-twitch) muscle fibers. These improvements allowed for greater respiratory capacity and oxygen extraction—and thus better aerobic endurance and exercise capacity—with ju...