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Skeletal System

The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.

14,490 Questions

Head of these bones form the knuckles?

The metacarpal bones form the knuckles in the hand. These bones connect the fingers to the wrist and are responsible for movement and support in the hand.

Has Ryan shekler broken any bones?

Yes, Ryan Sheckler has broken several bones throughout his skateboarding career. Some of the injuries he has suffered include a broken arm, wrist, and foot.

Bone percentage of body weight is bone?

Generally, 12-15% of your weight

Another source has 8%.

Of course the percentage depends greatly on your BMI or your obesity/skinniness. An anorectic will have a much higher bone mass percentage than an obese person.

Why are your long bones cylinder shaped?

Long bones are cylindrical in shape to provide structural support and withstand stress during weight-bearing activities. This shape allows for even distribution of forces along the length of the bone, making them more resistant to bending and twisting. Additionally, the cylindrical shape also maximizes internal space for bone marrow production and storage of essential minerals.

Do guys have fewer ribs than girls?

No, both men and women have the same number of ribs. Each adult typically has 12 pairs of ribs, regardless of gender. The idea that men have one less rib than women comes from the biblical story of Adam and Eve.

What is a cervical smear?

A cervical smear, also known as a Pap smear, is a screening test used to detect abnormalities in the cells of the cervix that could potentially lead to cervical cancer. During the procedure, cells are collected from the cervix and examined under a microscope for any signs of pre-cancerous or cancerous changes. It is a routine test recommended for women to help prevent cervical cancer.

What is the name and size of THE smallest bone in the human body?

The stapes or stirrup is the smallest of the three auditory ossicles of the middle ear. It rests against the oval window via its foot pad. It measures 3 x 2.5mm in length. Please keep in mind that the stapes is an irregularly shaped bone.

What part of the skeleton keeps the body's organs from moving down when you stand up?

The pelvis, specifically the pelvic floor muscles and ligaments, help support the body's organs and prevent them from moving down when standing up. These structures form a supportive foundation for the organs within the pelvic cavity.

What does baking remove from bones?

when bones is baked, the collagen are removed. Therefore, bones become dry and brittle, easy to break.

A dog fetching a bone is an example of what kind of trait?

A dog fetching a bone is a fine example of a treat. (for the dog)

Describe the 3 layers of bones?

  1. The outer layer of bones is the compact bone, which is dense and provides strength and support to the skeletal system.
  2. The middle layer is the spongy bone, which is less dense and contains spaces filled with bone marrow where blood cells are produced.
  3. The innermost layer is the bone marrow, which produces red blood cells, white blood cells, and platelets essential for bodily functions.

The skull is one of the major components of the axial skeleton name the other two?

The axial skeleton is composed of 80 bones, including the skull, the ossicles, the hyoid bone, the rib cage, sternum, and vertebral column.

The pelvis, upper & lower limbs and shoulder girdle make up the Appendicular skeleton.

What bones produce bone marrow?

!he bone marrow produces red blood cells, white blood cells and platelets.

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What is the part of the bone that makes blood?

Bone marrow is the part of the bone responsible for making blood cells. It is a soft, spongy tissue found within the center of bones and is essential for the production of red blood cells, white blood cells, and platelets.

What is the function of the shoulder?

The shoulder joint, being one of the most mobile joints in the body, show quite a lot of versatility in it's movements.

It shows flexion(150°-170°), extension (40°), abduction (160°-180°), adduction (30°-40°), lateral rotation (in abduction: 95°; in adduction: 70°) and medial rotation (in abduction: 40°-50°; in adduction: 70°).

Flexion is when your muscles bulge, like when you show off your biceps. Extension is the opposite of flexion, when you unbend your elbow. Abduction is when you raise your arm away from your body and adduction is when you lower your arm. Lateral rotation is when you rotate your arm outwards and medial is when you rotate your arm inwards.

What is the radius of curvature of cornea of human eye?

The average radius of curvature of the cornea in a human eye is approximately 7.8 mm. This curvature plays a crucial role in focusing light onto the retina for clear vision. Changes in the radius of curvature can affect the eye's refractive power and lead to vision problems like nearsightedness or farsightedness.

What is the human skull made out of?

Weight: Male: Heavier Female: Lighter Size: Male: In males the skull size is larger than that in females. Females: Smaller compared to that in males. The bony mass or the thicknes of the bone: Males: Thicker Females: Thinner Forehead:Males: In males the forehead is slightly sloping or receding. Females: The forehead is vertical. Vault of the skull: Males: The vault of the skull is more rounded. Females: The vault is flattened than that in females. Contour of the face: Males: The overall length of the skul is longer and the chin is bigger and projects more forwards, the skull is rugged due to its muscular makeup, and the zygomatic bones are also more massive. Females: The skull is Rounded, with the facial bones being more smoother, with both the jaws mandible and the maxilla being smaller. Supraorbital margin: Males: More rounded Females: Sharp. Tympanic plate: Males: Larger and the margins are rounded. Females: Smaller and the margins are less rounded.

Why does the human body need to regenerate bone?

umm...our bodies are designed to fix a wound such as a cut or burn. so if you were to break a bone or something then i think that the body would naturally regenerate bone. but say if you were growing then your body needs to generate bone to compensate for your growth. and if you want to have strong bones, then of course drink alot of calcium rich drinks such as milk.

What is the medical term meaning joint between the bones of the cranium?

The medical term for the joint between the bones of the cranium is "suture." Sutures are fibrous bands of tissue that connect the bones of the skull and allow for growth and flexibility during infancy.

Bone fracture that doesn't break the skin?

A bone fracture that does not break the skin is called a closed fracture. In this type of fracture, the bone is broken but the skin remains intact, which helps to reduce the risk of infection. Treatment usually involves immobilizing the bone with a cast or brace to allow it to heal properly.

What is the best food to consume if you have a broken bone you want to heal?

Foods rich in calcium, such as dairy products, leafy greens, and fortified foods, are beneficial for bone healing. Protein-rich foods like lean meats, fish, and legumes are also important as they provide the building blocks for tissue repair. Additionally, foods high in vitamin D and vitamin C can help support bone health and healing.

What are three cartilage in an adults skeleton?

  1. Hyaline cartilage: found in the nose, trachea, and ends of bones where they meet to form joints.
  2. Fibrocartilage: found in the intervertebral discs of the spine and in certain joint structures, providing shock absorption and strength.
  3. Elastic cartilage: found in the external ear and parts of the larynx, providing flexibility and maintaining shape.

What is the name of the bone people sit on?

If you mean the tailbone, it is called the coccyx.