Which is a part of the axial skeleton skeleton?
The axial skeleton consists of the braincase (cranium) and the backbone and ribs, and it serves primarily to protect the central nervous system. The limbs and their girdles constitute the appendicular skeleton.
What are the 3 main components of the axial skeleton?
The axial skeleton forms the central axis of the human body and consists of the skull, vertebral column, and thoracic cage.
What are the 9 bones in the axial skeleton?
Sphenoid bone. (greater wing)
What are the parts of the axial skeleton quizlet?
Can be divided into three parts: the skull, vertebral column, & the thorax.
Which skeletal structure is not part of the axial skeleton?
The E) pelvic girdle is not part of the axial skeleton. This is part of the lower limbs, according to common practice.
How many bones are there in axial skeleton?
80 bones
The 80 bones of the axial skeleton form the vertical axis of the body. They include the bones of the head, vertebral column, ribs and breastbone or sternum. The appendicular skeleton consists of 126 bones and includes the free appendages and their attachments to the axial skeleton.
What are the 4 parts of the appendicular skeleton?
The appendicular skeleton includes the bones of the shoulder girdle, the upper limbs, the pelvic girdle, and the lower limbs.
How many bones are in the axial skeleton?
Which bone is a part of the axial skeleton quizlet?
The axial skeleton consist of: the skull, hyoid bones, vertebral column, ribs, and sternum.
Is the femur part of the axial skeleton?
The axial skeleton includes the skull and all the cranial bones, the spine, the ribs and the hyoid bone. The pelvis, femur, fibula, tibia and all of the foot bones as well as the scapula, clavicle, humerus, radius, ulna and all of the hand bones are classified as appendicular.
Which bone is not part of axial skeleton?
Hip bone does not belong to the axial skeleton. (a) skull. (b) pelvic bones. (c) vertebrae.
What is the axial skeleton of a fish made of?
The axial skeleton of primitive fish such as cyclostomes (e.g. lamprey) is a flexible rod, the notochord which is formed of vacuolated chondrocytes, surrounded by a fibrous sheath. The stiffness of this hydrostatic skeleton depends on the osmotic pressure of the colloid in the vacuoles of the chondrocytes.
What are the components of axial skeletal system?
Skeletal System Axial Skeleton Introduction Basic Components: vertebrae, ribs, sternum, gastralia Phylogeny: fishes, tetrapods Form and Function: regionalization of the verterbrae Overview The notochordand vertebral columndefine the long axis of the vertebral body.
What is the function of the axial skeleton in tetrapods?
For this purpose, the axial skeleton of the tetrapod allows the rapid projection and retraction of the mouth, armed with teeth, towards the prey or the aggressor. The axial skeleton of primitive fish such as cyclostomes (e.g. lamprey) is a flexible rod, the notochord which is formed of vacuolated chondrocytes, surrounded by a fibrous sheath.
What are the different vertebral segments in fish?
In fishes: trunk and caudal. In amniotes: cervical, thoracic, lumbar, sacral, and caudal. Each vertebral segment consist of arches and central.