3 functions of muscle tissue. 1) movement a. of whole body or body parts (skeletal) b. of substances w/in body (cardiac-pumps blood, smooth-substances move through hollow organs) 2) heat production (mostly skeletal) 3) maintain posture and stabilize joints (skeletal).
Human embryonic stem cells in cell culture. Pluripotent: Embryonic stem cells are able to develop into any type of cell, excepting those of the placenta. Only embryonic stem cells of the morula are totipotent: able to develop into any type of cell, including those of the placenta. Embryonic stem cells (ES cells) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage preimplantation embryo. Human embryos reach the blastocyst stage 4â5 days post fertilization, at which time they consist of 50â150 cells.
The simple term stem cell actually refers to many different types of cells. The tissue-specific stem cells, or adult stem cells, replenish tissues throughout our lives. Embryonic stem cells exist only briefly in early development before tissues begin to form.he simple term stem cell actually refers to many different types of cells. The tissue-specific stem cells, or adult stem cells, replenish tissues throughout our lives. Embryonic stem cells exist only briefly in early development before tissues begin to form.