Compared with P cells, M cells have
a. smaller, slower axons.
b. smaller receptive fields.
c. the ability to respond to subtle contrast.
d. the ability to respond to color.
Question 2
You have been hiking, and as night falls and the temperature drops, the first part of your temperature regulation system to be activated is probably your ________, which will trigger your _________ to make you shiver.
a. spinal cord; skin receptors
b. skin receptors; hypothalamus
c. brainstem; hypothalamus
d. hypothalamus; skin receptors
Cnidarians have specialized stinging cells called cnidocytes
The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Segregation of B cells and T cells in a lymph node
Some of the many small molecules found in cells
The dystrophin glycoprotein complex (DGC) in skeletal muscle cells
Basbaum and Fields’s (1978) model of the descending analgesia circuit.