Kinesiology week 1-3

What are the primary components of kinesiology?

• The study of celestial bodies and their effects on human movement.

• The study of human movement, including anatomy, biomechanics, and physiology.

• The study of chemical reactions in the human body.

• The study of the history of physical education.

Which of the following human anatomical structures can be considered a simple machine in the context of kinesiology?

• The biceps muscle, involved in lifting objects.

• The brain, responsible for coordinating movements.

• The heart, facilitating blood circulation.

• The stomach, aiding in digestion.

The coronal plane is ____.

• A vertical plane that divides the body into left and right halves.

• A horizontal plane that separates the body into upper and lower portions.

• A plane that runs parallel to the ground and is crucial for analyzing twisting movements.

• A vertical plane that divides the body into front and back halves.

the "closed-packed position" of a joint refers to____.

• A position where the joint is at maximum mobility.

• A position of joint stability, with the articular surfaces in close contact.

• A position where the joint is most prone to injury.

• A position where the joint is fully dislocated.

When applying the concave-convex rule, what is the general guideline for how a convex joint surface moves on a concave joint surface?

• The convex joint surface slides in the same direction as the body segment.

• The convex joint surface slides in the opposite direction of the body segment.

• The convex joint surface remains stationary.

• The direction of movement depends on the specific joint, and there is no consistent rule.

What is a key difference between an open kinematic chain (OKC) and a closed kinematic chain (CKC)?

• In an OKC, the proximal segment is always stationary, while in a CKC, it is mobile.

• In an OKC, both the proximal and distal segments are free to move independently, while in a CKC, they move together.

• In an OKC, the distal segment is always stationary, while in a CKC, it is mobile.

• In an OKC, the distal segment is moving, while in a CKC, the proximal segment is moving.

In kinesiology, when referring to joint surfaces, which of the following best describes a concave surface?

• A surface that bulges outward and is typically more mobile.

• A surface that is smooth and unarticulated.

• A surface that is inwardly curved and typically serves as the fixed component in a joint.

• A surface that is flat and provides minimal mobility.

Which of the following statements accurately describes the relationship between the center of gravity (COG), base of support (BOS), and the gravity line?

• The center of gravity is always located within the base of support, and the gravity line passes directly through the COG.

• The base of support is determined by the location of the center of gravity, and the gravity line is irrelevant in analyzing balance.

• The center of gravity is a point where all body weight is concentrated, the base of support is the area under the feet, and the gravity line is an imaginary vertical line passing through the COG and within the BOS.

• The center of gravity and the base of support are separate concepts and have no direct relationship, while the gravity line represents the slope of the ground.

Which of the following statements accurately describes the base of support (BOS)?

• The base of support is the point where the center of gravity is located in the human body.

• The base of support remains constant and does not change during dynamic movements.

• The size and shape of the base of support have no influence on an individual's stability.

• A wider and more extensive base of support generally provides greater stability.

Which of the following is NOT a component in the a system model of balance?

• central set

• CNS organization

• motor organization

• sensory organization