There are 600 in the human body and there is no difference between the female muscular system and the male system regarding the number of body muscles. The main muscle groups are chest, back, shoulders, legs, and arms. Figure 1: Leg muscles labeled. Image Credit: Wikiemedia. Biology defin...
In short, contractions are a response generated by muscle tissue when stimulated. However, the actual mechanics of a muscular contraction are far more complicated. Muscles are composed of motor units, which are groups of muscle fibers that are stimulated by a motor neuron. When a strong enough ...
Which type of muscle causes voluntary movement? What are examples of muscle tissue? What type of muscle tissue is both striated and involuntary? What muscles allow for exhalation when they relax? What terminates a muscle contraction? What is a voluntary muscle system? What muscles does the autono...
Receptors in the muscles are sensitive to muscle stretches and contractions, sending signals to the brain about the muscle’s movement and position. Receptors in the joints and tendons (e.g., Golgi tendon organs) are sensitive to muscle tension and force, sending signals to the brain about the...
Health and fitness—Some students may be motivated to learn about the human body. Lessons could include the different organ systems and muscle groups. A teacher could create activities in which students learn how to take care of their bodies. Then the class could play a sport, practice yoga,...
“Fine motor skills involve the small muscles of the hands and fingers, while gross motor skills involve large muscles of the arms, legs, and torso.” (Biddle et al., 2013) Key features of fine motor skills include the use of smaller muscle groups (as opposed to large, whole-body moveme...
About two (2) weeks after the initial infection, some of the main symptoms of epidemic typhus may include chills and fever, rashes, a headache, muscle aches, nausea, and vomiting, etc. Treatment: Given that epidemic typhus is transmitted by body lice, preventive measures involve avoiding areas...
Rotation of the eyes actually requires seven muscle groups to work simultaneously, called the extraocular muscles or extrinsic ocular muscles. The muscles that move the eye outward are relaxed while the muscles that move the eye inward are contracted. At the same time, muscles that control the ro...
Groups of cells with similar functions that come together to function as a unit are known astissues. There are 4 main types of tissues; they areepithelial,muscle,connective, andnervous.Epithelial tissuesare the main tissues of the glands and have multiple functions including absorption, secretion,...
Adults: Adults should aim for at least 150 to 300 minutes of moderate-intensity aerobic activity per week, or 75 to 150 minutes of vigorous-intensity aerobic activity per week. Muscle-strengthening activities that involve all major muscle groups should be performed on two or more days a week....