Bones
how many bones are in the human body?
206 bones
What is a muscle?
a specialized body tissue composed of fibrous cells that contract to produce motion, maintain posture, and generate body heat
Which joint allows for the most movement?
The shoulder
What is the primary function of a tendon?
They act as a high tensile "cables" that connect muscles to bones. Their main job is to transmit the force generated by a muscle contraction to the bone, which creates movement at the joint
What do ligaments connect?
They connect bone to bone. They act as strong rubber bands that hold your skeleton together at the joints
are bones considered living tissue?
yes they are considered living tissue
Why do muscles get sore a day or two after exercise?
Delayed on set muscle soreness due to microscopic tears in muscle fibers caused by intense or unfamiliar activity
What is the largest joint in the human body?
The knee
Which tendon in the human body is the strongest?
The Achilles tendon
What is the most commonly injured ligament in the knee?
The Anterior Cruciate Ligament (ACL)
where is the smallest bone in the body located?
in the middle of the ear
Skeletal muscles are composed of what 2 main types of fiber?
Skeletal muscles are composed of two main types of muscle fibers: Type I (slow-twitch) and Type II (fast-twitch)
How do bones and joints stay healthy as we age?
weight bearing, exercise, and nutrient support like vitamin D
How do tendons differ from ligaments?
Tendons connect muscles to bone, while ligaments connect bone to bone
What are ligaments made of?
They are made from collagen fibers
which bone is the only bone in the human body that is not connected to another bone?
the hyoid
What are the three types of muscle tissue in the human body?
Skeletal muscle, smooth muscle, cardiac muscle
What are the three functional categories of joints?
synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, which is a freely moveable joint
What is the difference between Tendonitis and Tendinosis?
Tendonitis is an acute short term inflammation often caused by sudden overuse. Tendinosis is a chronic condition where the tendons collagen begins to break down due to stress
Can you see ligaments through your skin?
No, ligaments are deep inside the body. tightly wrapped Around joints to keep them stedy
what is the strongest and longest bone In the human body?
The femur
What is the strongest muscle in the human body?
the masseter (jaw muscle)
What are the main types of freely movable joints?
Ball and socket, the hinge, the pivot, and gliding
Why do tendons injuries usually heal slower then muscle injuries?
Because they have very limited blood supply
What is the difference between a sprain and a strain?
A sprain is an injury (tearing or stretching) of a ligament. A strain is an injury to a muscle or tendon