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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
Why do you get burning feeling in your lateral part of heel when you extend your knee?
The burning feeling in the lateral part of the heel when extending your knee can be due to compression or irritation of the lateral plantar nerve. This nerve runs along the outer part of the foot and can become irritated from activities that put pressure on it, such as extending the knee. It may also be related to issues with the plantar fascia or Achilles tendon. A thorough evaluation by a healthcare professional can help determine the exact cause and appropriate treatment.
How does bones protect your body?
Bones provide structure and support for the body, protecting vital organs such as the brain, heart, and lungs. They also act as a protective shield for bone marrow, where blood cells are produced. In addition, bones play a crucial role in movement and provide attachment points for muscles.
Is the funny bone a real bone?
The "funny bone" is the extension of the humerus bone (upper arm bone) into the elbow joint with the ulna (larger forearm bone). At the inside of the elbow, the ulnar nerve is located where the olecranon, or upper end of the ulna , meets the epicondyle, or lower end of the humerus. If the joint is struck, there is a tingling (a funny or odd sensation) and sometimes a temporary numbness in the lower arm, because the signals along the ulnar nerve are interrupted.
This has little to do with the name of the upper arm bone being the humerus (humorous), which is the Latin word for "shoulder."
Do finger and toenails grow from your bone?
ANSWER 1
Finger nails are combination of bone with Keratin, but without tissues or muscles or blood cells, they are formed like a protection layer which are extended from the inner bone but does not continue with the flesh or Finger, but are ttached to Finger.
Same is the reason, one doesn't feel pain while nails are cut but yes once can feel it when it it along with the flesh attaching it
ANSWER 2
Finger nails and toe nails are much more closely related to hair than to bone.
Bone is living tissue which contains nerves and manufactures blood cells.
Hair and nails are only living tissue at the base, where they connect to the skin. The base of a hair is called its "root"; the base of a nail is called its "bed".
All of the hair or nail above its base is dead tissue, being pushed upward by new living growth at the base. You can cut your hair or nails without feeling pain because they are not living tissue and contain no nerves except at their base.
If the atomic radius of aluminum is 0.143 nm calculate the valume of its unit cell in cubic meters?
Wouldn't converting .404 nm to meters be equal to (0.404)/(10^9) = 4.04 x 10^-10 m?
Then that cubed would equal: 6.59 x 10^-29. Am I calculating something wrong?
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When I did this problem, the diagonal of the body-centered cubic ended up being 0.572 nm. Then, with the pythagorean theorem, the edge was .404 nm. When converted to meters, it is 0.003710. This cubed (for volume) is then 5.1 x 10 (to the negative 8 power). <-- answer to question
Which part of the human body has the most bones?
The hands have the most bones -- 27 in each hand. The hands and feet together make up more than half the bones in the human body. There are 206 bones in the human body; 106 of these are in the hands and feet (27 in each hand and 26 in each foot).
What are the functions of tendons?
The function of a tendon is a type of soft tissue that connects muscle tissue to bones just like ligaments that connect two or more bones. The purpose of tendons is to transfer force between muscle and bone.This allows the joint movement that allows for everyday activities like walking or reaching. Tendons can have several shapes ranging from wide and flat, ribbon and fan shaped.
Tendons connect muscles to bones.
There are 26 bones per foot. There are two small bones under the base of the first toe that are called sesamoids. If you count them then the total is 28. Conventionally we refer to it as 26 bones per foot.
Why do bone injuries heal much more rapidly than injuries to cartilage?
Because of the lack of blood supply to cartilage, (a new technique to hasten healing of injuries is to introduce fresh blood flow into the area) whereas the marrow in bones actually produce red blood cells, and bones are actually a honeycomb like structure, and they are constantly being taken apart, and rebuilt, microscopic bit by bit.
What major organs are found in the thoracic cavity?
Pleural cavity: lungs
Pericardial cavity: heart
Mediastinum: heart, esophagus, trachea, diaphragm, thymus gland, aorta
Surrounded by rib cage; backed by spinal vertebrae and scapula.
in mass would be the skull though the skull is really made up of 28 bones that all fuse togther. the top three longest bones in the body are the femur or thigh bone then the tiba or shin bone and then the fibula or lower leg.
No, nails are not bones. Nails are made of a protein called keratin, while bones are rigid organs that make up the skeletal system. Bones provide structure and support to the body, whereas nails protect the ends of the fingers and toes.
The skull can be subdivided into two parts: the cranium and the mandible. A skull that is missing a mandible or lower jaw bone is only a cranium.
the bowl-shaped part of your skull
What causes human infant bones to fuse together as they grow?
Because children have more bones than adults. They is because the bones fuse together when the children are growing. A baby has 300 bones at birth. But because bones fuse together during the "growth period", adults have less bones and they end up with 206 bones.
How many bones in an adult body?
An adult human body typically has 206 bones. These bones provide structure and support for the body, protect internal organs, and aid in movement. Some individuals may have slight variations in the number of bones due to differences in bone structure.
What is the weakest bone in your body?
The strongest bone in your body is your thigh bone (or femur) and is also the largest bone in the human body.
The lacrimal bone, the smallest and most fragile bone of the "face", is situated at the front part of the medial wall of the orbit.
What type of bone is the skull?
The skull is composed of the cranium and the facial bones. They are like all the other bones of the body, except they do not produce blood cells, like long bones and short bones.The cranial bones are flat bones such as the frontal, parietal, temporal, and occipital bones. The facial bones are considered irregular-shaped bones and consist of; sphenoidal, lacrimal, and a few others.
P. What is the combination of the skeletal and muscular systems called?
The combination of the skeletal and muscular systems is called the musculoskeletal system. This system is responsible for providing structure, support, and movement to the body.
Occipital bone is found in what area of the body?
The occipital bone is located on the back of the skull. The occipital protuberance can be seen/felt on the back of the head, as it is the rather large bump. This occipital bone encloses a large oval hole called the foramen magnum which allows the spinal cord to pass through.
backbone and skull. the bones that make up the vertebral column and skull. The skeleton is divided into two portions: Axial and Appendicular. Appendicular is all the bones from the humerus of the arm to the distal-most digits of the fingers and from the femur to the tips of your toes. Axial is everything else.
Cranium
Vertebra
How many vertebrae are in the human body?
Almost all humans are born with 33 separate vertebrae. By adulthood, most have only 24. This is due to the fusion of the vertebrae in certain parts of the spine during normal development. Different textbooks give different answers to this question. The confusion comes from the fact that the two lowest vertebrae -- the sacrum and the coccyx -- are each one bone, but they are made up from smaller bones fused together.
There are 24 separate vertebrae; then there is the sacrum, which is formed from 5 fused vertebrae; and finally the coccyx, which is formed from between 3-5 fused vertebrae. Therefore, if the coccyx and sacrum are each classed as one vertebra, then there are 26 vertebrae. If the fused vertebrae are all counted separately, then there are 32-34 vertebrae. 32
The human spine has 7 cervical, 12 Thoracic and 5 Lumbar vertebrae as well as 5 (fused) in the sacrum and another 4 (fused) in the coccyx which totals 33.33 in total. 7 cervical, 12 thoracic, 5 lumbar 5 sacral+4 coccygeal (fused)
24, and are grouped under the names cervical (7 vertebrae), thoracic (12 vertebrae) and lumbar (5 vertebrae), according to the regions they occupy.
-Wikipedia
There's a total of 33 vertebrae - comprising... 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 coccyx (fused)
The correct answer is 33
But usually there are "fused" bones (probably a bad thing) during our human development.
I should point out that this number 33 has significance in many other areas besides just the actual number of our human vertebrae.
thirty
-three (33)
vertebraein
humans
There are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae and 4 coccygeal vertebrae. That's a total of 33 vertebrae.
33
33
26 vertebrae make up the spine. Oddly enough, we have the same amount of vertebrae as giraffes do!
in the human spine there is 7 cervical, 12 thoracic, and 5 lumbar vertebae.
The spine consist of 24 moving segments plus the sacrum and the coccyx.
33. :)
Vertebral Column
- Cervical Vertebrae - 7
- Thoracic Vertebrae - 12
- Lumbar Vertebrae - 5
- Sacrum -1
- Coccyx - 1
Total Vertebral Column = 26
In the human vertebral column, there exist the following vertebrae:
7 Cervical Vertebrae
12 Thoracic Vertebrae
5 Lumbar Vertebrae
Although these are the vertebrae commonly recognized as the spine, there is also the sacrum (In layman's terms: the arrowhead shaped bone structure at the bottom of the spine, before the tailbone). The sacrum is actually made up of vertebrae which are fused together to make a more whole bone structure.
5 vertebrae make up the sacrum
Also, the coccyx (tailbone) is considered another vertebrae
1 vertebrae in the coccyx
Which is the largest bone in the human body?
in mass is is the skull but in length it is the spine
-The skull is actually composed of 22 individual bones that are fused; the spine of 24 individual vertebrae. The femur (thigh bone) is the heaviest and longest individual bone in the human body.
What are all the human bones names and labeled?
nose = nasal
hips = pelvis tibia = shin ankle = tarsal thigh = femur skull = cranium
lower jaw = mandible upper jaw = maxilla breastbone = sternum
fingers = phalanges or metacarpals toes = phalanges or metatarsals
lower arm = ulna and radius funny bone = humerus kneecap = patella
spine = vertebra shoulder blade = scapula
collarbone = clavicle
lower spine = lumber vertebra heel bone = calcanues
Do men have more ribs than women?
No. This is an old "wives tale". Males have the same number as females: 12 pairs.
Some times you have additional pair of rib, that is attached to last cervical vertebra. Then it is called as cervical rib. Cervical rib can be found in both the sexes.
