The 18 bones Biology 131

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The 18 bones Biology 131
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Sternum

• The sternum is the large flat bone articulating
  with the cartilages of the first seven ribs and
  with the clavicle.
• The sternum is also called or known as the breast
  bone.

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Calcaneus

• The calcanues can be also known as the heel bone.

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Patella

• The patella can also be called or is known as the
  knee cap.
• The patella rides on the knee bones when our
  knees bend.

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Ilium

• The Ilium is made up of bone marrow.
• The Illium serves as the attachment site for the
  lateral muscles of the abdominal wall.

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Femur

• The femur is a long bone whose axis of movement
  is well outside of its substance for most of its
  length.

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Tibia

• The tibia is in the lower leg.
• The tibia helps support the body weight.

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Humerus

• The humerus can be also be known as the funny
  bone.
• The humerus is a long bone with one upper joint
  and two lower joints.

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Radius

• The radius can be found below your elbow next to
  the ulna.

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Ulna

• The ulna is the longer of the two bones in the
  forearm the other bone being the radius.
• The lower end of the ulna is rounded and forms a
  joint with the wrist bones and lower end of the
  radius.

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Fibula

• The fibula is both in the inner and narrower of
  the two bones of the human lower leg extending
  from the knee to the ankle.
• The fibula is on the lateral side of the tibia.
• Can also be called the calf bone.

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Phalanges

• The phalanges are the finger bones. All your
  fingers are made up of three phalanges except the
  thumb which has two phalanges.
• Phalanges can also be found in your feet.

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Cranium (frontal)

• The cranium or frontal has another name the
  skull.
• The cranium is made up of two parts.
• The vertical portion, corresponding with the
  forehead and secondly the horizontal or orbital
  portion which enters the formations of the roofs
  and nasal cavities.

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Sacrum

• The sacrum, or sacral spine is a part of the
  lower spine.
• The sacrum's function is to stabilize the body
  pelvis.
• There are no muscles that cross the sacrum.

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Mandible

• The mandible is also known as the jaw.
• The mandible is u shaped.
• The mandible helps in the process of chewing our
  food into bits of pieces to swallow.

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Scapula

• The scapula can be called the shoulder blade.
• Triangular shape.
• The scapula is the bone that connects the humerus
  with the clavicle.

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Axis

• The axis is the second cervical vertebra of the
  spine.
• The axis forms the pivot upon the first cervical
  (atlas).

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Atlas

• The atlas is the topmost first cervical vertebra
  if the spine.
• The atlas forms the joint connecting the skull
  (cranium) and spine.

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Clavicle

• The clavicle is also known as the collar bone.
• The clavicle is a long bone that makes up most of
  the shoulder.
• Double curved bone.

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Fun interesting stuff!!!

• On average an adult has 206 bones.
• You have 26 bones in your foot, and 27 in your
  hands.
• The femur is the longest bone in the body.
• A baby has 300 bones when they are bone, while
  growing up the bones fuse together.

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Quiz Yourself!!!!
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Quiz One!
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Quiz 2

• Match each question with the correct answer on
  the right.
• What bone can also be known as the jaw?
• What bone can also be called the heel bone?
• The _____ rides on the knee bones when our knees
  bend.
• What bone is made up of bone marrow?
• How many bones does an average adult have?
• The ____is a long bone whose axis of movement is
  well outside of its substance for most of its
  length.

• Cranium
• Eighteen
• Two hundred and six
• Humerus
• Patella
• Illium
• Femur
• Mandible
• Calcaneus
• Tibia

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Answers for Quiz 1 and 2
Quiz 1
Quiz 2

• Metacarpals
• Carpals
• Skull
• Clavicle
• Radius
• Ulna
• Humerus
• Ribs
• Sternum
• Vertebra
• Ilium
• Femur
• Patella
• Fibula
• Tibia
• Tarsels
• Metatarsel

• Mandible H
• Calcanues I
• Patella E
• Ilium F
• 206 bones C
• Femur G