answersLogoWhite

0

🧪

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

What type of cells protect the neurons in the central nervous system from some substances in the blood?

The blood-brain barrier is a protective mechanism made up of specialized cells (endothelial cells) lining blood vessels in the central nervous system. These cells restrict the passage of substances from the blood into the brain, helping to protect neurons from potential toxins and pathogens.

How does an infant's skull differ from an adult skull?

1-adult skull is fused while children's and fetus 's skull is unfused.

2-The fetus and children's skull is flexable the "fontanels are soft to help mom in

birth while adult skull is rigid and hard not flexable but it is breakable.

3-The fetus and children's skull is smaller thinner and composed of deformable bones while adult's skull is bigger thicker and not deformable usually after age 18-25.

What is the spine of a book called?

The spine of a book is called the backbone. It is the part of the book that faces outward when placed on a shelf and typically displays the title, author, and publisher.

Explain the difference why there are more bones among children than men?

Children have more bones than adults because some bones fuse together as they grow. For example, the skull of a child is made up of many bones that gradually fuse into a single structure by adulthood. Additionally, children have more cartilage, which will eventually ossify into bone as they mature.

Is the fibula lateral to the tibia?

The tibia is medial to the fibula. The tibia is the larger of the lower leg bones.

Do skeleton bones decompose?

Yes, skeleton bones can decompose over time, breaking down into smaller pieces due to environmental factors like moisture, temperature, and microbial activity. However, the process of bone decomposition is slower compared to other organic materials.

Where in the eye is the orbital bone located?

the eye lies in the orbital cavity, a fossa made up of many bones of the skull! there is no orbital bone in the eye.

Why is the calcaneum bone significant?

The calcaneus, or heel, is the strongest bone in the body. Thanks to the density and resistance to forces of standing, walking, and running. Often the femur is considered the strongest because of size and flexible properties.

Muscles that contract to bring two bones closer together are called?

The muscles that contract to bring two bones closer together are called flexor muscles. These muscles work by decreasing the angle between the two bones, resulting in movement such as bending the arm or leg.

What are the three bones that make up a pig's ear?

The pig is a mammal, same as a human, and has the standard 3 auditory ossicles of the middle ear.

  • tympannic side = malleus or hammer
  • middle = incus or anvil
  • oval window side = stapes or stirrup

What is the extension of the pelvis that encircles the apex of a pyramid?

The extension of the pelvis that encircles the apex of the pyramid is called the pelvic brim, also known as the pelvic inlet. It is the upper border of the pelvic cavity and is defined by the bony edges of the pelvic bones.

Are bone marrow cells fully differentiated?

No, bone marrow cells are not fully differentiated. They include stem cells that have the potential to differentiate into various types of blood cells, like red blood cells, white blood cells, and platelets. These stem cells are essential for replenishing the body's blood cell supply.

How is bone marrow articular cartilage the epiphyseal line and epiphyseal plate related?

The epiphyseal plate is a section of hyaline cartilage that seperates the epiphysis from the diaphysis in long bones. The growth and ossification of the epiphyseal plate is responsible for the bone growing longer. Articulate cartilage is similar, however, it is found on the outside layer of the epiphysis. It grows and resorbs allowing for the remodelling of the bone. The epiphyseal line is the remains of the epiphyseal plate once it has stopped growing.

What is the column at the back of the body?

The spinal column is a series small bones that helps support the body and surrounds the spinal cord which has nerve links from the cord to various parts of the body and leading back to the brain.

An isolated conducting sphere whose radius R equals 1M has a charge 1.1nc the energy density at the surface of sphere?

The energy density at the surface of a charged conductor is the surface charge density squared , divided by 2 x the permittivity of free space. The surface charge density is the charge divided by the area it sits on. So if, e = permittivity = 8.85 x 10^-12 CC/Nmm and D = surface charge density, and U = energy density and R = radius of sphere and q = charge on sphere, then; U = (1/2e) x D^2 where D = q/4piR^2 = 1.1 x 10^-9/(4 x 3.14 x 1) = 8.76 x 10^-11 , where 4piR^2 is the surface area of a sphere. So; D^2 = 76.7 x 10^-22 then ; U = (76.7 x 10^-22)/(17.7 x 10^-12) = 4.33 x 10^-10 Joules/mmm

What ligament is on the knee area posterior side of femur on tibia?

Four ligaments are present in the knee joint, the medial collateral ligament, lateral collateral ligament, anterior cruciate ligament, and posterior cruciate ligament. The medial collateral ligament is located at the inside of the knee joint. It extends from the medial femoral epicondyle to the tibia. The lateral collateral ligament is located at the outside of the knee joint. It extends from the lateral femoral epicondyle to the head of the fibula. The anterior cruciate ligament extends posterolaterally from the tibia and inserts on the lateral femoral condyle. The posterior cruciate ligament extends anteromedially from the tibia posterior to the medial femoral condyle.

Can a human kick you and break your femur bone?

Yes, it is possible for a human to kick with enough force to break someone's femur bone. The femur is the strongest bone in the human body, but a powerful enough impact or direct force can cause a fracture.

What is the element that is needed to build bones?

Calcium is the main element needed to build bones. It helps to form and maintain their structure and strength. Other important elements for bone health include phosphorus, magnesium, and vitamin D.

My bone density report was a minus 3 what does this mean?

it means that the dencity of your bones are really low and you need calcium supplements The lower a person's T-score, the lower the bone density. A T-score of -2.5 or lower is a diagnosis of osteoporosis. Examples are T-scores of -2.8, -3.3 and -3.9.

Are women made from a mans rib?

because Adam was born with one extra rib so that he could give it up to make eve.

Maybe God took (a copy of) one side of the chromosomes, X from XY.

Tsela (Strong's Hebrew Dictionary) means rib or side.

Wayne Simpson wrote: If we look closely at the

Hebrew word for rib we will learn of something quite surprising. The word translated rib in Genesis 2 is tsela. This word is used in a number of other places in the Bible and

its meaning is shown to be quite different than what we have imagined. The only other

place in the Bible where the English word rib occurs is in Daniel 7:5, translated from an

altogether different Hebrew word. One Bible translation dares to break with the use of the traditional word rib. The Stone edition of the Chumash renders the verse this way:

" ...and He took one of his sides and He filled in the flesh in its place."

http://bible.cc/genesis/2-21.htm

I guess God took both, rib or side and X-chromosome. Anyway. If I lose my hands by accident and get a child after that, I guess my child would not born handless.

Wonderful rib. Read more.

http://creation.com/regenerating-ribs-adam-and-that-missing-rib

What percentage of bones are in your hands?

Around 26% of your bones are in your hands and over half of your bones are found in both hands and your feet. 26 bones in each foot and 27 bones in each hand.

The Hip elbow and knee are called what type of joint?

The hip, elbow, and knee are called synovial joints. These joints are characterized by a synovial capsule filled with synovial fluid that allows for smooth movement between the bones. They are highly mobile and permit various types of movements such as flexion, extension, abduction, and rotation.

For this journey you are miniaturized and injected into the interior of the largest bone of your host's body the?

Once inside the bone, you will navigate through the bone marrow, which produces blood cells, and the trabecular bone structure that supports the bone's strength. You may also encounter osteoclasts and osteoblasts, cells responsible for bone remodeling and maintenance. It's a unique way to witness the intricate microscopic world within our bones.

What is the nasal bone cavity called?

The nasal bone cavity is called the nasal cavity. It is a large air-filled space behind the nose that acts as a passage for air to enter and exit the respiratory system.