bio ch 35 and 36
Terms
undefined, object
copy deck
- glands and tissue that cover interior and exterior body surfaces
- epithelial tissue
- provides support for the body and connects its parts
- connective tissue
- transmits nerve impulses throughout the body
- nervous tissue
- enables the body to move
- muscle tissue
- t/f: the process by which organisms keep internal conditions relatively constant is called *homeostasis*
- true
- t/f: cells that transmit nerve impulses are known as *meninges*
- fase; neuron
- t/f: the long fiber that carries impulses away from the cell body of a nerve cell is the *dendrite*
- true
- t/f: the lowest level of stimulus needed to activate a neuron is called the *action potential*
- false; threshold
- t/f: the location at which a neuron can transfer an impulse to another cell is referred to as a *synapse*
- true
- t/f: the part of the brain that controls voluntary actions is the *brain stem*
- false; cerebrum
- t/f: the part of the brain that receives impulses from the senses and sends them to the cerebrum is the *hypthalamus*
- false; thalamus
- t/f: light enters the eye through a small opening called the *pupil*
- true
- t/f: photoreceptors in the eye that are sensitive to colors are known as *rods*
- false; couls
- t/f: drugs called *opiates* increase actions controlled by the nervous system
- false; stimulates
- t/f: an uncontrollable dependence on a drug is known as drug *abuse*
- false; addiction
- levels of organization in a multicellular organism, smallest to largest
- cells, tissues, organs, and organ system
- resting potential
- the electrical charge across the cell membrane of a neuron in its resting state
- function of atuonomic nervous system
- regulates activities that are automatic or involuntary
- how does alcohol affect the central nervous system?
- slows reflex, disrupts coordination, and impairs judgement
- type of connective tissue that is replaced by bone as a person grows
- cartilage
- protein found in hair and nails
- haversian
- type of canals in bone that contain blood vessels and nerves
- keratin
- layer of skin where melanocytes are located
- epidermis
- tough layer of connective tisssue that holds bones together in a joint
- periostem
- process in which cartilage is replaced by bone
- ossification
- tough connective tissue that holds bones together in a joint
- ligament
- protein found in thick muscle filaments
- myosin
- tough connective tissue that joins skeletal muscle to bone
- tendon
- layer of skin that contains glands and blood vessels
- dermis
- dark brown pigment in skin
- melanin
- place where one bone attaches to another bone
- joint
- protein found in thin muscle filaments
- detin
- three different types of muscle tissue
- skeletal, smooth, cardial
- point at which a motor neuron and a skeletal muscle cell meet
- neuromuscual junction
- neurotransmitter that transmits impulses to the muscle cell
- acetylcholine