What is the pattern of weight transfer during the process of making a step with a human foot?
What will be an ideal response?
The first contact of the foot with the ground at the start of a step is at the calcaneus. Weight is then transferred through the talus to the metatarsals, along the longitudinal arch, then to the base of the phalanges, with the last point of contact being the hallux.
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A major nerve of the lumbar plexus is the ________.
A) femoral B) iliohypogastric C) sciatic D) ilioinguinal
Skin, lung, and blood vessel walls have which tissue characteristic in common?
A) simple columnar epithelium B) reticular fibers C) elastic fibers D) simple squamous epithelium
The actual sites of gas exchange within the lungs include
A) bronchioles. B) alveolar ducts. C) pleural spaces. D) alveoli. E) capillary beds.
Osmosis does not occur if there is no concentration gradients for water and solutes on opposite sides of a semipermeable membrane
Indicate whether the statement is true or false