For the following two movements,
compare (a) the type of kinematics (i.e., proximal-on-distal or
distal-on-proximal segment) and (b) the relative demands placed on
the quadriceps muscles.
First movement: From a deep squat position, come to a standing
position.
Second movement: From a seated position, straighten out the
leg.
1. Identify the organs of the alimentary canal from proximal
to distal, and briefly state their function
2. Identify the accessory digestive organs and briefly state
their function
The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle connects to the bones of the forearm about 2.15 cm beyond the joint. Assume the forearm has a mass of 2.35 kg and a length of 0.445 m. When the humerus and the biceps are nearly Humerus vertical and the forearm is horizontal, if a person wishes to hold an object of mass 5.35 kg so that her forearm remains motionless,...
1. The combination of the proximal and distal versions of the
articulation mentioned above provides for a distinct type of joint
motion discussed in class. Which of the following are those joint
motions (choose all that apply)?
a. rotation b. Combination c. flexion d.supination e.abduction
f. adduction g. circumduction h. extension i. pronation
2. Which of the following bones/features are included in the
pelvic girdle (choose all that apply)?
femure ilium sacrum pubis pubic symphesis ischium coccyx
Humerus bones from the same species of animal tend to have
approximately the same length-to-width ratios. When fossils of
humerus bones are discovered, archeologists can often determine the
species of animal by examining the length-to-width ratios of the
bones. It is known that species A has a mean of 8.5. Suppose
forty-one fossils of humerus bones were unearthed at an
archeological site in East Africa, where species A is believed to
have inhabited. (Assume that the unearthed bones are all...
Indicate the functions of the proximal convoluted tubule, the
loop of Henle, the distal convoluted tubule, and the collecting
ducts and how is the fluid passes through each one.