BIOL 101 Lecture Notes - Lecture 14: Bone Marrow, Negative Feedback, Blastocoel
Document Summary
Cells > tissues > organs > organ systems. Homeostasis: maintenance of constant internal environment in the face of changing environment. Move away > return to correct level. Move away > move further away *end goal/ point. {start with low blood o2 is low > kidney senses it and secretes epo > epo hormone releases > Bone marrow sense epo and increase red blood production > end with normal blood o2) figure. { childbirth : brain produces oxytocin helps increase contraction and reaches an end point } 4 types on animal tissues: connective tissue *anything attach to the skeleton *blood, connects ,supports and protects, epithelial tissue *covering *all organs are covered with this i. ii. iii. Lungs i. ii. iii. iv. i. ii. iii. i. ii. iii. iv. Nerves: muscle tissue *respond *conscious/unconscious control, contracts response to stimuli, nervous tissue *made up neurons, transmit impulse, respond to stimuli.
