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Muscular System
The muscular system allows humans to move. Muscles also provide strength, balance and heat.
11,239 Questions
Is the pupil a reflex or voluntary?
Pupils reacts to light, narrowing in bright light and widening in poor light - so is a reflex action.
What are 7 cells that uses energy?
1.Bone cells(Osteocytes) They are the toughest body Cell as they are bound together by calcium and phosphate. As you knows they give strength, support and frame-work to the body by enclosing organs in skeletal system i.e bones.
2. Cartilage cells(chondrocytes)- These cells are similar to bone cells but the surrounding material is just loose and flexible compared to those of bone cells. Hence they are freely bendable. They are present in ear bone (hence ears are fold-able), in between large bones to help them bend and move freely like in between two ribs, spinal bones, joints etc.
3. Nerve cells: These cells are very long and have many branching at either ends. Their specialty is they never multiply in one's life time.They are present all over the body and are sometimes as long as few meters long. They are human brain cells and are found in plenty in brain and the spinal cord and form the nervous tissue.
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4. Epithelial cell: These cells are very simple cells which form covering of other cells. These cells form covering layers of all the organs and hence are preset in skin, scalp, respiratory tract, in the buccal cavity surface etc. Ex: Skin cells, mucous cells.
5.Muscle cells: These cells are of muscle tissue mostly long, large and have ability to contract and relax providing movements. They are three types as skeletal, cardiac and smooth muscles.
- Skeletal muscles cells are attached to long bones and assist in their movement (by muscle contraction).
- Cardiac muscles cells are present only in heart muscle and responsible for heart beats.
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- Smooth muscle cells are flexible yet, can contract and relax and are present in stomach, intestine, blood vessel walls (vascular tissue) etc. helping in movement of food through the gut.
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6 Secretory cell: These cells as name indicates are secretory in nature. They form glands and secrete something important ex; pancreatic cells which secrete insulin, glucagon, salivary gland secrete salivary amylase, sebaceous gland secrete oil on the skin etc.They are found in all secretory organs.
7.Adipose cells: These are fat cells and are storage in nature to store fat. Especially seen in the soles, palms, bums etc. They reduce friction to the body.
8. Blood cells: These cells include RBC's, WBC, Thormbocytes etc. They are always motile and never stay in one place. They have limited life span and they never multiply to form new cells. instead new cells are formed from other cells.
How much activities are there in shorten hills?
Shorthills, often referring to the Short Hills area in New Jersey, offers a variety of activities, including hiking and nature exploration in the nearby South Mountain Reservation. The region is also known for its picturesque parks, shopping, dining, and cultural attractions. Additionally, community events and recreational programs are frequently held, providing residents and visitors with diverse engagement opportunities. Overall, there's a rich mix of outdoor and community activities available in the area.
What are muscular tubes called?
Muscular tubes in the body are often referred to as "muscular ducts" or "muscular tubes." An example includes the esophagus, which transports food from the mouth to the stomach through rhythmic contractions called peristalsis. Other examples include the trachea and various blood vessels, which also feature muscular layers to help facilitate the movement of substances.
What is the point of contact between motor neurons and a skeletal muscle cell?
A nueromusculator junction
How do you shorten the print length?
To shorten the print length, you can adjust the margins, reduce the font size, or change the font type to a more condensed style. Additionally, consider using single spacing instead of double spacing and removing unnecessary spaces or line breaks. Finally, editing the content to eliminate redundant information can also effectively reduce the overall length.
The "biceps brachii" in the upper arm, for example, has two origins. This is shown in its name, "biceps," which means "two heads." It is attached to the scapula (shoulderblade) in two places
Which Nerve ending is located in a tendon and protects against overcontracting?
The internal tendon bulk is thought to contain no nerve fibres, but the epitenon and paratenon contain nerve endings, while Golgi tendon organs are present at the junction between tendon and muscle.
Which of cell type is specialized for contraction and generation of force?
The three types of muscle cells (cardiac, smooth and skeletal) fit this description.
How many muscles does it take to smile and to frown?
It takes about 17 muscles to smile and 43 to frown
Can you have a heart attack by having not enough oxygen in the cardiac muscle?
Yes, ischemia leads to heart arrest.
What are the functions of the masseter muscles?
Biting and chewing. This muscle is capable of generating more force (pounds per square inch) than any other muscle in the human body. (It is why an acrobat can spin from a dangling rope while holding onto it with nothing but his or her teeth, leaving the arms and legs free to turn).
What condition results when muscles waste away because of neglect?
Atrophy
actually that would be atrophy...
