神经和肌肉套件

In this lab, learners record compound action potentials (CAPs) from a cockroach leg nerve in response to various physical stimuli. Learners examine CAP amplitudes and frequency, and identify different “classes” of CAP that represent different individual axons.

在这个实验室中,学习者记录细胞外的行动potentials from the ventral nerve cord of a cockroach, or similar insect. Spontaneous activity, and different types of stimuli, (including tapping the bench, clapping, air puffs, and touching), are compared and analyzed using frequency histograms. Learners also determine the nerve conduction velocity of the ventral nerve.

In this lab, learners obtain extracellular recordings of action potentials from an anesthetized earthworm (Lumbricus terrestris). They examine the threshold voltage required to evoke an action potential, first in the median fiber, and then in the lateral fibers. They also examine the “all-or-none’ response, the refractory period, and the conduction velocity of the median nerve.

在这个实验室中，学习者研究了平滑肌对神经递质，温度和离子的一些反应。earth（lumbricus terrestris物种）肠道提供了可靠的平滑肌制剂，可以安装在器官浴中并附着在力传感器上。这种安排使学习者能够衡量收缩率和力量。

In this lab, learners measure some of the basic physiological properties of cardiac muscle from an in situ frog heart including contraction force, electrocardiogram (ECG). Learners also apply the Frank-Starling law of the heart to explain the relationship between stretch of cardiac muscle and the force of contraction.

在本实验室中，学习者从孤立的青蛙坐骨神经中测量复合动作电位（CAP），以探索神经冲动的基本生理特性，包括阈值，耐火周期和传导速度。

在这个实验室中，学习者探讨了骨骼肌与运动神经供应之间的关系。他们使用具有完整坐骨神经的孤立青蛙胃gas虫来探索抽搐募集，肌肉疲劳和Tubocurarine的作用。

In this lab, learners explore the following properties of skeletal muscle: twitch recruitment, effects of muscle stretch, summation, tetanus, and fatigue. The experiment is carried out using an isolated frog gastrocnemius muscle.

In this lab, learners will become familiar with administering tactile stimulation to Manduca sexta larvae and pupae. They record and analyze EMG data from a pupal preparation that they have set up themselves.

In this lab, learners make intracellular recordings from neurons in a leech ganglion. They will become familiar with an intracellular amplifier, and with the use of glass microelectrodes. Learners will record and analyze both resting potentials and action potentials, of different neuronal cell types.