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flexible strand of connective tissue that holds bones together is a _______.
flexible strand of connective tissue that holds bones together is a ligament.
true or false the endocrine system releases hormones to prepare the body for action.
true
The excretory system:
gets rid of the body’s wastes. The urinary system, shown here, removes wastes from blood. The skin, lungs, and digestive system also remove wastes from the body.
the place where two or more bones connect
a joint
clavicle:
the bone that connects the breastplate (sternum) to the shoulder
_______ is a strong, flexible, and smooth connective tissue found at the end of bones.
Cartilage is a strong, flexible, and smooth connective tissue found at the end of bones.
true or false The brain sends electrical messages to the muscles.
true
The lymphatic system:
returns leaked fluid back to the blood. As a major part of the immune system, it has cells that help get rid of invading bacteria and viruses.
the type of joint that can move in a complete circle
ball-and-socket joint
radius:
one of the two large bones of the forearm
Bones also contain a soft tissue called ______.
Bones also contain a soft tissue called marrow.
true or false cartilage take quickly to heal
false
The cardiovascular system:
moves blood through the body. The heart is the pump for this system. Blood flows through blood vessels.
a disease that causes joints to swell, stiffen, and become painful
Arthritis
tibia:
The tibia is a larger bone on the inside
The connective tissue in bone is made mostly of a protein called ______
The connective tissue in bone is made mostly of a protein called collagen
true or false the Axial system contains the arms, legs, shoulders, and pelvis.
false
The nervous system:
collects information and responds to it by sending electrical messages. This information may come from outside or inside the body. The brain is the center of the nervous system.
a disease that causes bone tissue to become thin
Osteoporosis
fibula:
a leg bone on the lateral side of the tibia
_______ make the bones strong and hard
Minerals make the bones strong and hard
true or false an average of 209 bones
false
The endocrine system:
makes chemical messages. These messages help to regulate conditions inside the body. They also influence growth and development.
a hereditary disease that causes skeletal muscle to become weaker over time
Muscular dystrophy
scapula
a large triangular-shaped bone that lies in the upper back