Examples of axial skeleton in the following topics:
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- The axial skeleton forms the central axis of the human body and consists of the skull, vertebral column, and thoracic cage.
- The axial skeleton forms the central axis of the human body and includes the bones of the skull, the ossicles of the middle ear, the hyoid bone of the throat, the vertebral column, and the thoracic cage (ribcage) .
- The function of the axial skeleton is to provide support and protection for the brain, spinal cord, and organs in the ventral body cavity.
- The thoracic cage, also known as the ribcage, is the skeleton of the chest.
- The axial skeleton consists of the bones of the skull, ossicles of the middle ear, hyoid bone, vertebral column, and rib cage.
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- The appendicular skeleton supports the attachment and functions of the upper and lower limbs of the human body.
- The human appendicular skeleton is composed of the bones of the upper limbs (which function to grasp and manipulate objects) and the lower limbs (which permit locomotion).
- The pectoral girdle bones, providing the points of attachment of the upper limbs to the axial skeleton, consists of the clavicle (or collarbone) in the anterior, as well as the scapula (or shoulder blades) in the posterior .
- The pelvic girdle attaches to the lower limbs of the axial skeleton and is responsible for bearing the weight of the body and for locomotion.
- It is securely attached to the axial skeleton by strong ligaments.
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- There are three different skeleton designs that provide organisms these functions: hydrostatic skeleton, exoskeleton, and endoskeleton.
- Although a hydrostatic skeleton is well-suited to invertebrate organisms such as earthworms and some aquatic organisms, it is not an efficient skeleton for terrestrial animals.
- The skeletal system in vertebrates is divided into the axial skeleton (which consists of the skull, vertebral column, and rib cage), and the appendicular skeleton (which consists of the shoulders, limb bones, the pectoral girdle, and the pelvic girdle).
- The skeleton of the red-knobbed sea star (Protoreaster linckii) is an example of a hydrostatic skeleton.
- The skeletons of humans and horses are examples of endoskeletons.
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- Chondrichthyes are jawed fishes that possess paired fins and a skeleton made of cartilage.
- Like sharks, rays and skates have a cartilaginous skeleton.
- Members of the clade Osteichthyes, also called bony fish, are characterized by a bony skeleton.
- A few groups of Osteichthyes, such as sturgeons and paddlefish, have primarily cartilaginous skeletons, but retain some bony elements.
- As members of Chondrichthyes, their skeletons are composed of cartilage.
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- Hexactinellid sponges have sturdy lattice-like internal skeletons made up of fused spicules of silica; they tend to be more-or-less cup-shaped.
- Many sponges have internal skeletons of spongin and/or spicules of calcium carbonate or silica.
- Primarily, their body consists of a thin sheet of cells over a frame (skeleton).
- They then either form completely new sponges or recolonize the skeletons of their parents.
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- Steroids are lipids that have a hydrocarbon skeleton with four fused rings; different steroids have different functional groups attached to the carbon skeleton.
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- Joints, responsible for movement and stability of the skeleton, can be classified based on structure or function.
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- It increases calcium levels by targeting the skeleton, the kidneys, and the intestine .
- In the skeleton, PTH stimulates osteoclasts, which are cells that cause bone to be reabsorbed, releasing calcium from bone into the blood.
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- Primates evolved from arboreal ancestors and share many characteristics, including flexible skeletons, large brains, and vision reliance.
- The skeleton of primates allows great flexibility in moving through varying environments.
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- In vertebrates, sonic hedgehog (Shh) and Wnt morphogenetic signaling gradients establish the dorsoventral axis of the central nervous system during neural tube axial patterning.