What do you know about skeleton and backbone? What type of joint is knee joint? How does a bird walk on the ground?
Answers
(backbone)The spine (or backbone) runs from the base of the skull to the pelvis. It serves as a pillar to support the body's weight and to protect the spinal cord. ... These curves help the spine withstand great amounts of stress by providing a more even distribution of body weight
(skeleton) In total, the human skeleton consists of a whopping 206 bones.
In addition to all those bones, the human skeletal system includes a network of tendons, ligaments and cartilage that connect the bones together. The skeletal system provides the structural support for the human body and protects our organs.
The knee joint is a hinge type synovial joint, which mainly allows for flexion and extension (and a small degree of medial and lateral rotation). It is formed by articulations between the patella, femur and tibia.
All birds can walk on the ground, some can swim, and most of them can fly. The bodies of most birds are well-suited for flying.
They have light and hollow bones, and the bones of the hind limbs are used for walking and perching.
The wings that we see are the bony parts of the forelimbs.
A bird has strong shoulder bones, and a large breastbone. This bone controls the muscles of flight in the body.
Answer:
SKELETON : The skeleton is the body part that
support, shape and protection to the soft tissues and delicate organs of animals.
BACKBONE : The row of small bones that are connected together down the middle of your back.
KNEE JOINT : The knee joint is a hinge type synovial joint.
BIRDS : Birds do walk in ground because they have a feet like humans and they can fly because their bones are hollow.
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